Necklace , fashion necklace,alloy necklace.handmade necklace 1,Material:zinc alloy,tin alloy. 2,Plating: Bright ... sn-cu. Necklace , fashion necklace,alloy necklace.handmade necklace1) Material :zinc alloy,tin alloy.2) Plating : Bright sn ... certification.Please feel free to contact us for further information. handmade necklace