Soft Silicone Earring Backs Rubber Earring Safety Back Stopper Replacement for Fish Hook Earring Ear Stud and and Posts Feature: Soft & Comfortable These earring backs are made of Silicone, elaborate workmanship makes them smooth and soft in surface, comfortable and anti-allergic to wear. Fit Most Earrings These earring backs measure about 20mm/8mm long,the hole about 0.5mm. They are fit for most earrings. whatever earrings hooks or ear studs, Easy to use It's easy to wear them on or remove them from the posts, preventing earrings being lost or stabbing yourselves. It is very helpful for new people with ear piercing Comfortable to sleep in and do not tarnish leaving that greenish residue for some not so good quality earrings. Also necessary for extremely allergic to metal persons Cover this protective tube onto earrings pins, and still enjoy these chic earrings . Item Type : Earring Tubes Material:Silicone (Nickel Free, Hypoallergenic property) Color:Clear Size: A Length 0.8cm /0.31",Suits Earrrings Studs(200Pcs) B Length 2cm/0.79" ,Suits Earrrings Hooks(100Pcs) More detailed,please see photo. Quantity:1 Set. Note: Size for manual measurement, there may be a 0 to 2 for cm error, belongs to the normal phenomenon. And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Set x Earring Tubes.