Package includes:Comes with 2 different sizes of earring posts, including 50 pairs 4 mm earring pin studs, 25 pairs 6 mm earring pin studs, 100 pieces butterfly earring backs and 200 pieces rubber bullet earring backings. (1 inch=25.4mm or 1mm=0.0393 inch) fit to most...

Earring hooks:The earring hooks and open jump rings are made of 925 silver plated copper,nickel free and Hypo-allergenic.The earring backs are made of clear silicone, the earring silver hooks will make you comfort and make jewelry DIY well 500 PCS Combination:150 Pcs 75 pairs...