●Package include: 0.09 Ounce rubber earring backs (about 144 pieces/ 72 pairs), enough for your spare and replacement.You can use them for a long time ●Compact and lightweight: earring backs are 2.5 mm in diameter, 3.5-3.8mm high and 0.7 mm in aperture, can work well with most earrings. Such as fish hook earrings, post studs, earring hoops and so on ●Clear rubber earring backs:The clear silicone earring backs are hypoallergenic, soft and clear. The comfortable materials of the earring backs for studs will bring you perfect experience ●Easy to use: rubber earring backs slide easily onto the posts, safely hold your earrings in place without loosening, prevent your jewelry loss ●Perfect for anyone: Clear earring backs are made of Rubber; safe and no reactions to very sensitive skin. They are small and easy to carry, so they are there when you need them