Earring Backs - Soft and Durable: made of clear silicone rubber, the earring backs stoppers are pliable and comfortable to wear. Accurate Designs Made By Computer Machinary That It Will Not Feel Heavy, Comfertable for Ears. Essential Important Product For Jewelry Making/Designing,Earring Locking. Fits most earrings, strong and secure grip; retains the original gripping strength. Portable and compact, suitable for various earrings, jewellery other handmade crafts accessories.Earring backs clear rubber earring stoppers bullet clutch earring safety backs replacement for earring hooks studs. This is the simplest and most common type of earring back (also known as push backs). It consists of a flat plate with a hole the size of the post. It slides onto the post and goes against the ear. It has scrolls of Rubber that curve up and press against the post with a light spring tension that holds the back in place. Friction backs are easy to pop on and off so are very convenient.