Package: 100 PCS silver earring hooks for jewelry making with 100 PCS rubber earring safety backs stoppersenough for your spare and replacement .Material: Earring hooks are made of copper and earring backs are made of clear silicone, pliable and comfortable to wear, safe and no reactions .Feature: earring hooks is simple but delicate, enjoy playful curves and dynamic styles, step out of the standard hoop earrings and show a curvy style on your ear, suits for almost every earring wearing occasions .Function: Hypo-allergenic ear wires hooks will give you more choices to DIY your own earrings, rubber earring backs to assist your daily earring wearing, no worry about the earring slipping issues .Application: Ideal for your making earrings, DIY jewelry making crafting projects, use them with other jewellery findings to make fascinating jewellery or beautiful ornament .