Items
Blood Guard's Leather VicesItem Level 63Binds when picked upUniqueHandsLeather110 Armor+15 Stamina+10 Agility+32 Attack PowerRequires Level 58Sell Price: 69 silver 32 copper
Blood Guard's Leather WalkersItem Level 66Binds when picked upUniqueFeetLeather126 Armor+18 Stamina+40 Bonus Armor+28 Attack PowerRequires Level 60Equip: Increases the duration of your Sprint ability by 3 sec.Sell Price: 1 gold 21 silver 92 copper
Blood Guard's Leather WalkersItem Level 66Binds when picked upFeetLeather126 Armor+27 Stamina+40 Bonus Armor+28 Attack PowerRequires Level 60Equip: Increases the duration of your Sprint ability by 3 sec.Sell Price: 1 gold 21 silver 92 copper
Blood Guard's Mail BootsItem Level 66Binds when picked upFeetMail266 Armor+21 Stamina+12 Intellect+29 Spell HealingRequires Level 60Equip: Increases the speed of your Ghost Wolf ability by 15%.Sell Price: 1 gold 47 silver 51 copper
Blood Guard's Mail EpauletsItem Level 55Binds when picked upShoulderMail246 Armor+9 Strength+11 Stamina+5 Intellect+14 Critical StrikeRequires Level 50Sell Price: 1 gold 76 silver 96 copper
Blood Guard's Mail GauntletsItem Level 66Binds when picked upHandsMail242 Armor+23 Stamina+9 Intellect+14 Critical Strike+13 Spell PowerRequires Level 60Sell Price: 1 gold 1 silver 57 copper
Blood Guard's Mail GlovesItem Level 66Binds when picked upHandsMail242 Armor+23 Stamina+9 Intellect+14 Critical Strike+29 Spell HealingRequires Level 60Sell Price: 1 gold 1 silver 57 copper
Blood Guard's Mail GreavesItem Level 66Binds when picked upUniqueFeetMail266 Armor+14 Stamina+12 Intellect+13 StrengthRequires Level 60Equip: Increases the speed of your Ghost Wolf ability by 15%.Sell Price: 1 gold 47 silver 51 copper
Blood Guard's Mail GreavesItem Level 66Binds when picked upFeetMail266 Armor+21 Stamina+14 Strength+10 HitRequires Level 60Equip: Increases the speed of your Ghost Wolf ability by 15%.Sell Price: 1 gold 47 silver 51 copper
Blood Guard's Mail GripsItem Level 63Binds when picked upUniqueHandsMail231 Armor+15 Stamina+7 Intellect+6 Strength+19 Spell PowerRequires Level 58Sell Price: 83 silver 18 copper
Blood Guard's Mail HelmetItem Level 55Binds when picked upHeadMail266 Armor+11 Strength+18 Stamina+7 Intellect+14 Critical StrikeRequires Level 50Sell Price: 1 gold 66 silver 10 copper
Blood Guard's Mail SabatonsItem Level 66Binds when picked upFeetMail266 Armor+21 Stamina+12 Intellect+15 Spell PowerRequires Level 60Equip: Increases the speed of your Ghost Wolf ability by 15%.Sell Price: 1 gold 47 silver 51 copper
Blood Guard's Mail VicesItem Level 66Binds when picked upUniqueHandsMail242 Armor+15 Stamina+9 Intellect+14 Critical Strike+13 Spell PowerRequires Level 60Sell Price: 1 gold 1 silver 57 copper
Blood Guard's Mail VicesItem Level 66Binds when picked upHandsMail242 Armor+23 Stamina+10 Strength+14 Critical Strike+10 HitRequires Level 60Sell Price: 1 gold 1 silver 57 copper
Blood Guard's Mail WalkersItem Level 63Binds when picked upUniqueFeetMail255 Armor+14 Stamina+10 Intellect+14 Spell PowerRequires Level 58Equip: Increases the speed of your Ghost Wolf ability by 15%.Sell Price: 1 gold 24 silver 85 copper
Blood Guard's Plate BootsItem Level 63Binds when picked upUniqueFeetPlate452 Armor+23 Stamina+8 Strength+5 AgilityRequires Level 58Sell Price: 88 silver 66 copper
Blood Guard's Plate GauntletsItem Level 66Binds when picked upUniqueHandsPlate429 Armor+17 Strength+17 StaminaRequires Level 60Equip: Hamstring Rage cost reduced by 3.Sell Price: 63 silver 57 copper
Blood Guard's Plate GauntletsItem Level 66Binds when picked upHandsPlate429 Armor+17 Strength+26 StaminaRequires Level 60Equip: Hamstring Rage cost reduced by 3.Sell Price: 63 silver 57 copper
Blood Guard's Plate GlovesItem Level 63Binds when picked upUniqueHandsPlate410 Armor+16 Strength+15 StaminaRequires Level 58Equip: Hamstring Rage cost reduced by 3.Sell Price: 59 silver 31 copper
Blood Guard's Plate GreavesItem Level 66Binds when picked upUniqueFeetPlate472 Armor+23 Stamina+10 Strength+9 AgilityRequires Level 60Sell Price: 98 silver 27 copper
Blood Guard's Plate GreavesItem Level 66Binds when picked upFeetPlate472 Armor+35 Stamina+10 Strength+9 AgilityRequires Level 60Sell Price: 98 silver 27 copper
Blood Guard's Plate HelmItem Level 55Binds when picked upHeadPlate469 Armor+13 Strength+15 Stamina+14 Critical Strike+10 HitRequires Level 50Sell Price: 1 gold 93 silver 60 copper
Blood Guard's Plate PauldronsItem Level 55Binds when picked upShoulderPlate433 Armor+11 Strength+12 Stamina+14 Critical StrikeRequires Level 50Sell Price: 1 gold 78 silver 73 copper
Blood Guard's Pulsing HelmetItem Level 55Binds when picked upHeadMail266 Armor+18 Stamina+11 Intellect+10 Hit+13 Spell PowerRequires Level 50Sell Price: 1 gold 66 silver 10 copper
Blood Guard's Pulsing ShouldersItem Level 55Binds when picked upShoulderMail246 Armor+11 Stamina+5 Intellect+14 Critical Strike+11 Spell PowerRequires Level 50Sell Price: 1 gold 76 silver 96 copper
Blood Guard's Restored Leather HelmItem Level 55Binds when picked upHeadLeather128 Armor+13 Stamina+13 Intellect+13 Spirit+20 Bonus Armor+24 Spell HealingRequires Level 50Sell Price: 1 gold 37 silver 62 copper
Blood Guard's Restored Leather SpauldersItem Level 55Binds when picked upShoulderLeather118 Armor+10 Stamina+10 Intellect+10 Spirit+10 Bonus Armor+22 Spell HealingRequires Level 50Sell Price: 1 gold 40 silver 44 copper
Blood Guard's Satin BootsItem Level 63Binds when picked upUniqueFeetCloth61 Armor+16 Stamina+15 Intellect+12 Spell PowerRequires Level 58Sell Price: 87 silver 72 copper
Blood Guard's Satin CoverItem Level 55Binds when picked upHeadCloth64 Armor+14 Stamina+13 Intellect+40 Bonus Armor+29 Spell Healing+5 Mana RegenerationRequires Level 50Sell Price: 1 gold 18 silver 78 copper
Blood Guard's Satin GlovesItem Level 63Binds when picked upUniqueHandsCloth56 Armor+11 Stamina+21 Spell PowerRequires Level 58Equip: Gives you a 50% chance to avoid interruption caused by damage while casting Mind Blast.Sell Price: 58 silver 68 copper
Blood Guard's Satin GripsItem Level 66Binds when picked upHandsCloth58 Armor+18 Stamina+5 Intellect+40 Bonus Armor+21 Spell PowerRequires Level 60Equip: Gives you a 50% chance to avoid interruption caused by damage while casting Mind Blast.Sell Price: 68 silver 21 copper
Blood Guard's Satin HandwrapsItem Level 66Binds when picked upUniqueHandsCloth58 Armor+12 Stamina+5 Intellect+40 Bonus Armor+21 Spell PowerRequires Level 60Equip: Gives you a 50% chance to avoid interruption caused by damage while casting Mind Blast.Sell Price: 68 silver 21 copper
Blood Guard's Satin HandwrapsItem Level 66Binds when picked upHandsCloth58 Armor+18 Stamina+5 Intellect+40 Bonus Armor+40 Spell HealingRequires Level 60Equip: Reduces the duration of your Weakened Soul by 2 sec.Sell Price: 68 silver 21 copper
Blood Guard's Satin PadsItem Level 55Binds when picked upShoulderCloth59 Armor+12 Stamina+10 Intellect+40 Bonus Armor+22 Spell Healing+4 Mana RegenerationRequires Level 50Sell Price: 1 gold 12 silver 16 copper
Blood Guard's Satin TreadsItem Level 66Binds when picked upFeetCloth64 Armor+26 Stamina+15 Intellect+14 Spell PowerRequires Level 60Sell Price: 95 silver 36 copper
Blood Guard's Satin WalkersItem Level 66Binds when picked upUniqueFeetCloth64 Armor+17 Stamina+15 Intellect+14 Spell PowerRequires Level 60Sell Price: 95 silver 36 copper
Blood Guard's Satin WalkersItem Level 66Binds when picked upFeetCloth64 Armor+26 Stamina+15 Intellect+26 Spell HealingRequires Level 60Sell Price: 95 silver 36 copper
Blood Guard's Silk FootwrapsItem Level 63Binds when picked upUniqueFeetCloth61 Armor+16 Stamina+15 Intellect+12 Spell PowerRequires Level 58Sell Price: 85 silver 11 copper
Blood Guard's Silk GauntletsItem Level 66Binds when picked upHandsCloth58 Armor+18 Stamina+10 Intellect+40 Bonus Armor+18 Spell PowerRequires Level 60Equip: Gives you a 50% chance to avoid interruption caused by damage while casting Arcane Blast.Sell Price: 68 silver 45 copper
Blood Guard's Silk GlovesItem Level 63Binds when picked upUniqueHandsCloth56 Armor+11 Stamina+21 Spell PowerRequires Level 58Equip: Increases the damage absorbed by your Mana Shield by 285.Sell Price: 57 silver 16 copper
Blood Guard's Silk HandwrapsItem Level 66Binds when picked upUniqueHandsCloth58 Armor+12 Stamina+10 Intellect+40 Bonus Armor+18 Spell PowerRequires Level 60Equip: Increases the damage absorbed by your Mana Shield by 285.Sell Price: 68 silver 45 copper
Blood Guard's Silk HandwrapsItem Level 66Binds when picked upHandsCloth58 Armor+18 Stamina+10 Intellect+40 Bonus Armor+18 Spell PowerRequires Level 60Equip: Increases the damage absorbed by your Mana Shield by 285.Sell Price: 68 silver 45 copper
Blood Guard's Silk WalkersItem Level 66Binds when picked upUniqueFeetCloth64 Armor+15 Stamina+10 Intellect+40 Bonus Armor+15 Spell Power+10 HitRequires Level 60Sell Price: 99 silver
Blood Guard's Silk WalkersItem Level 66Binds when picked upFeetCloth64 Armor+23 Stamina+10 Intellect+40 Bonus Armor+21 Spell PowerRequires Level 60Sell Price: 99 silver
Blood Ruby PendantItem Level 59Binds when equippedNeck+10 Intellect+10 StaminaRequires Level 54Sell Price: 1 gold 55 silver 38 copper
Blood ScytheBinds when picked upUnique"Allows an Herbalist to collect Bloodvine from Zul'Gurub Flora when carried."Sell Price: 1 gold 50 silver
Blood TalonItem Level 60Binds when picked upMain HandFist Weapon35 - 67 DamageSpeed 1.30(39.2 damage per second)Requires Level 55Chance on hit: Wounds the target causing them to bleed for 100 damage over 30 sec.Sell Price: 4 gold 88 silver 21 copper
Blood Tiger BreastplateItem Level 65Binds when equippedChestLeather181 Armor+17 Strength+17 Stamina+16 Intellect+13 SpiritRequires Level 60Sell Price: 3 gold 19 silver 93 copper
Blood Tiger ShouldersItem Level 65Binds when equippedShoulderLeather136 Armor+13 Strength+13 Stamina+12 Intellect+10 SpiritRequires Level 60Sell Price: 2 gold 40 silver 82 copper
Blood-Caked Hakkari Bijou
Bloodied ChestwrapsItem Level 22Binds when picked upChestLeather89 Armor+9 Agility+4 Intellect+4 StaminaRequires Level 17Sell Price: 8 silver 14 copper
Bloodmaster's RingItem Level 45Binds when picked upFinger+7 Stamina+6 Intellect+9 Spell PowerSell Price: 78 silver 86 copper
BloodpikeItem Level 28Binds when equippedTwo-HandPolearm59 - 89 DamageSpeed 3.20(23.1 damage per second)Requires Level 23Chance on hit: Wounds the target causing them to bleed for 98 damage over 14 sec.Sell Price: 53 silver 82 copper
Bloodsail Admiral's HatItem Level 60Binds when picked upHeadCosmeticUse: Right Click to summon and dismiss your Blood Parrot.Sell Price: 2 gold
BloodseekerItem Level 63Binds when picked upRangedCrossbow85 - 128 DamageSpeed 3.30(32.3 damage per second)+7 Agility+8 StrengthSell Price: 4 gold 41 silver 71 copper
Bloodsoul BreastplateItem Level 65Binds when equippedChestMail381 Armor+13 Stamina+9 Agility+28 Critical StrikeRequires Level 60Sell Price: 3 gold 96 silver 83 copper
Bloodsoul GauntletsItem Level 65Binds when equippedHandsMail238 Armor+17 Stamina+10 Agility+14 Critical StrikeRequires Level 60Sell Price: 1 gold 99 silver 80 copper
Bloodsoul ShouldersItem Level 65Binds when equippedShoulderMail286 Armor+24 Agility+10 StaminaRequires Level 60Sell Price: 3 gold
Bloodsport BandItem Level 45Binds when picked upFinger+6 Stamina+22 Attack Power+5 Health Per 5 Sec.Sell Price: 79 silver 15 copper
Bloodvine BootsItem Level 65Binds when equippedFeetCloth63 Armor+16 Intellect+10 Hit+19 Spell PowerRequires Level 60Sell Price: 1 gold 89 silver 15 copper
Bloodvine GogglesItem Level 65Binds when equippedHeadCloth75 Armor+20 Hit+14 Critical Strike+9 Mana RegenerationRequires Level 60Sell Price: 1 gold 86 silver 39 copper
Bloodvine LeggingsItem Level 65Binds when equippedLegsCloth80 Armor+6 Intellect+10 Hit+37 Spell PowerRequires Level 60Sell Price: 2 gold 51 silver 29 copper
Bloodvine LensItem Level 65Binds when equippedHeadLeather147 Armor+12 Stamina+28 Critical StrikeRequires Level 60Equip: Increases your effective stealth detection level by 2.Sell Price: 2 gold 32 silver 11 copper
Bloodvine VestItem Level 65Binds when equippedChestCloth92 Armor+13 Intellect+20 Hit+27 Spell PowerRequires Level 60Sell Price: 2 gold 50 silver 35 copper
Bloody ApronItem Level 24Binds when picked upChestCloth42 Armor+9 Stamina+7 Health Per 5 Sec.+13 Spell Healing+4 Spell DamageRequires Level 19Sell Price: 11 silver 53 copper
Bludgeon of Betrayed VirtuesItem Level 43Binds when picked upOne-HandMace45 - 84 DamageSpeed 2.20(29.3 damage per second)+3 Strength+6 Stamina+2 AgilitySell Price: 1 gold 62 silver 13 copper
Bludstone HammerItem Level 61Binds when equippedMain HandMace59 - 110 DamageSpeed 2.10(40.2 damage per second)+12 Spirit+5 StaminaRequires Level 56Sell Price: 5 gold 26 silver 5 copper
Blue Dragonscale BreastplateItem Level 57Binds when equippedChestMail338 Armor+28 Intellect+8 Spell Power+8 Arcane ResistanceRequires Level 52Sell Price: 2 gold 44 silver 9 copper
Blue Dragonscale LeggingsItem Level 60Binds when equippedLegsMail310 Armor+20 Intellect+19 Spell Power+12 Arcane ResistanceRequires Level 55Sell Price: 3 gold 10 silver 83 copper
Blue Dragonscale ShouldersItem Level 59Binds when equippedShoulderMail262 Armor+21 Intellect+6 Spell Power+6 Arcane ResistanceRequires Level 54Sell Price: 2 gold 5 silver 43 copper
Blue Hakkari BijouRequires Level 58"A significant Paragon of Power from the Gurubashi Empire."Max Stack: 250
Blue MechanostriderBinds when usedRequires Level 40"Teaches you how to summon this mount."
Blue Qiraji Resonating CrystalBinds when picked upUniqueRequires Level 60"Teaches you how to summon this mount."
Blue Skeletal HorseBinds when usedRequires Level 40"Teaches you how to summon this mount."
Blush Ember RingItem Level 37Binds when equippedUniqueFinger+8 Spirit+5 Agility+4 StrengthRequires Level 32Sell Price: 33 silver 81 copper
Boahn's FangItem Level 20Binds when equippedTwo-HandAxe35 - 53 DamageSpeed 2.50(17.6 damage per second)+9 Strength+4 SpiritRequires Level 15Sell Price: 20 silver 84 copper
Bone KnucklesItem Level 18Binds when picked upMain HandFist Weapon17 - 32 DamageSpeed 2.00(12.3 damage per second)+6 Attack PowerRequires Level 13Sell Price: 11 silver 26 copper
BonechewerItem Level 48Binds when equippedTwo-HandPolearm94 - 141 DamageSpeed 2.80(42.0 damage per second)+23 Strength+10 StaminaRequires Level 43Sell Price: 2 gold 93 silver 67 copper
Bonerust LeggingsItem Level 21Binds when picked upLegsMail164 Armor+7 Strength+6 Agility+3 SpiritRequires Level 16Sell Price: 10 silver 42 copper
BoneslicerItem Level 28Binds when picked upTwo-HandPolearm36 - 55 DamageSpeed 2.00(22.8 damage per second)Requires Level 23Chance on hit: Wounds the target for 70 Physical damage.Sell Price: 56 silver 25 copper
BonesnapperItem Level 53Binds when equippedMain HandMace66 - 124 DamageSpeed 2.70(35.2 damage per second)+11 Strength+5 StaminaRequires Level 48Sell Price: 3 gold 38 silver 32 copper
Book of Deathstones: Fungal Spore ClusterBinds when picked upUniqueRequires Level 60"A tome detailing the art of converting deathstones into a fungal spore cluster."
Book of Deathstones: Monstrous Spider FangBinds when picked upUniqueRequires Level 60"A tome detailing the art of converting deathstones into a monstrous spider fang."
Book of Deathstones: Ritual DaggerBinds when picked upUniqueRequires Level 60"A tome detailing the art of converting deathstones into a ritual dagger."
Book of Deathstones: Rod of NecromancyBinds when picked upUniqueRequires Level 60"A tome detailing the art of converting deathstones into a rod of necromancy."
Book of Deathstones: Skeletal ArtifactBinds when picked upUniqueRequires Level 60"A tome detailing the art of converting deathstones into a skeletal artifact."
Book of Deathstones: Thaddius' Lightning BoltsBinds when picked upUniqueRequires Level 60"A tome detailing the art of converting deathstones into Thaddius' lightning bolts."
Book of Ferocious Bite VRequires Level 60"Teaches Ferocious Bite (Rank 5)."Sell Price: 10 gold
Book of Healing Touch XIRequires Level 60"Teaches Healing Touch (Rank 11)."Sell Price: 10 gold
Book of Rejuvenation XIRequires Level 60"Teaches Rejuvenation (Rank 11)."Sell Price: 10 gold
Book of Starfire VIIRequires Level 60"Teaches Starfire (Rank 7)."Sell Price: 10 gold
Book: Gift of the WildRequires Level 50"Teaches Gift of the Wild (Rank 1)."Sell Price: 87 silver 50 copper
Book: Gift of the Wild IIRequires Level 60"Teaches Gift of the Wild (Rank 2)."Sell Price: 1 gold 47 silver 50 copper
Boots of ElementsItem Level 59Binds when picked upFeetMail240 Armor+17 Spirit+9 Agility+14 Spell PowerRequires Level 54Sell Price: 2 gold 10 silver 27 copper
Boots of ValorItem Level 59Binds when picked upFeetPlate424 Armor+20 Stamina+9 Strength+5 Agility+2 DefenseRequires Level 54Sell Price: 1 gold 45 silver 36 copper
Booty Bay Bruiser's BuckshotItem Level 35Binds when picked upRangedGun35 - 66 DamageSpeed 2.80(18.0 damage per second)+3 Stamina+9 Attack PowerRequires Level 30Use: Take steady aim and fire a round to knock your target away.Sell Price: 62 silver 17 copper
Bottom Half of Advanced Armorsmithing: Volume IUniqueRequires Level 50Use: Combines the Top and Bottom Half of Advanced Armorsmithing: Volume I.
Bottom Half of Advanced Armorsmithing: Volume IIUniqueRequires Level 50Use: Combines the Top and Bottom Half of Advanced Armorsmithing: Volume II.
Bottom Half of Advanced Armorsmithing: Volume IIIUniqueRequires Level 50Use: Combines the Top and Bottom Half of Advanced Armorsmithing: Volume III.
Bottomless BagBinds when equipped20 Slot BagSell Price: 4 gold
Bottomless Bag
Bracers of HeroismItem Level 65Binds when picked upWristPlate296 Armor+14 Stamina+9 Strength+5 Agility+3 DefenseSell Price: 1 gold 25 silver 68 copper
Bracers of HeroismItem Level 65Binds when picked upWristPlate296 Armor+14 Stamina+11 Strength+5 Agility+6 Health Per 5 Sec.Sell Price: 2 gold 31 silver 68 copper
Bracers of The Five ThundersItem Level 65Binds when picked upWristMail167 Armor+9 Intellect+11 Spirit+8 Stamina+18 Spell Healing+6 Spell DamageSell Price: 1 gold 92 silver 51 copper
Bracers of ValorItem Level 57Binds when equippedWristPlate261 Armor+14 Stamina+7 Strength+3 Agility+2 Spirit+2 DefenseRequires Level 52Sell Price: 87 silver 38 copper
Bramblewood BeltItem Level 70Binds when equippedWaistLeather108 Armor+14 Stamina+15 Nature ResistanceRequires Level 60Sell Price: 1 gold 96 silver 7 copper
Bramblewood BootsItem Level 70Binds when equippedFeetLeather132 Armor+12 Stamina+25 Nature ResistanceRequires Level 60Sell Price: 2 gold 93 silver 2 copper
Bramblewood HelmItem Level 70Binds when equippedHeadLeather156 Armor+20 Stamina+30 Nature ResistanceRequires Level 60Sell Price: 2 gold 91 silver 90 copper
Bravo's ArmbandsItem Level 22Binds when picked upWristLeather39 Armor+4 Agility+2 Strength+4 SpiritSell Price: 5 silver 55 copper
Brawler GlovesItem Level 28Binds when equippedHandsLeather62 Armor+8 Strength+7 StaminaRequires Level 23Sell Price: 10 silver 70 copper
Brawler's Leather ArmorItem Level 20Binds when picked upChestLeather85 Armor+7 Agility+3 Spirit+3 Stamina+5 StrengthRequires Level 15
Brawler's Leather BeltItem Level 17Binds when picked upWaistLeather45 Armor+4 Agility+3 Stamina+4 StrengthRequires Level 12
Brawler's Leather BootsItem Level 22Binds when picked upFeetLeather61 Armor+5 Agility+4 Stamina+5 StrengthRequires Level 17
Brawler's Leather GlovesItem Level 20Binds when picked upHandsLeather53 Armor+4 Agility+3 Stamina+4 StrengthRequires Level 15
Brawler's Leather HelmItem Level 30Binds when picked upHeadLeather84 Armor+10 Agility+13 StaminaRequires Level 25
Brawler's Leather HoodItem Level 25Binds when picked upHeadLeather76 Armor+10 Stamina+8 AgilityRequires Level 20
Brawler's Leather LegguardsItem Level 30Binds when picked upLegsLeather90 Armor+9 Agility+6 Spirit+7 Stamina+7 StrengthRequires Level 25
Brawler's Leather PantsItem Level 25Binds when picked upLegsLeather82 Armor+9 Agility+4 Spirit+4 Stamina+6 StrengthRequires Level 20
Brawler's Leather TunicItem Level 27Binds when picked upChestLeather98 Armor+8 Agility+5 Spirit+6 Stamina+6 StrengthRequires Level 22
Breastplate of the ChosenItem Level 63Binds when picked upChestMail370 Armor+14 Stamina+14 Strength+14 Spirit+14 Intellect+14 AgilityRequires Level 58Sell Price: 3 gold 59 silver 55 copper