TOAOB 100 Stainless Steel 5mm Flat Pad Earring Finding Plus 100 Rubber Earnut Stoppers Package of 50 Sets 100 Pairs earring stopper and back: package includes 50 pieces earring pin studs, 50 pieces butterfly earring backs, a large amount earring posts and earring studs can meet your requirement Earrings posts and backs size: the earring posts pin is 12 mm in length, 5 mm pad in diameter, 0.7 mm pin thickness; The earring backs is 5 mm in length, 5 mm in thickness Plus 100 Rubber Earnut Stopers: comfortable and lightweight,help to prevent earring loss and they can be used with gold and silver earrings without causing an allergic reaction Nice DIY craft supply: Very easy to make a pair of beautiful earrings,these secure and stylish ear studs will add right amount of flair to your earring designs. You can add sparking and elegant gemstone to the earring Note: Earring Backs is small.Never worry about losing those earring backs again