Feature: Great replacement for lost earring backs. for those post earrings for Butterfly Clutches for Post Earrings Keep those earrings in place! Come with clutches 100 pieces for 50 pairs. Item Type:Jewelry Findings Metal: Silver Plated Copper Nickel and Lead free Color: Sliver Size: Approx Diameter 5mm/0.2" Height:3.5mm/0.14" Quantity: 50Pairs. Note:1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes(without retail package): 50Pairs x Earrings Backs