[Package Include] - Comes with 2 different sizes of earring posts, including 50 pairs 4mm earring pin studs, 50 pairs 6mm earring pin studs, 200 pieces butterfly earring backs and 100 pieces rubber bullet earring backs. (1 inch=25.4mm or 1mm=0.0393 inch) | [High Quality] - Both the jewelry posts and the butterfly earring backings are made of stainless steel, durable and not rusty. The clear bullet earring backs are made of rubber, non-toxic and safe for your skin | [DIY Making] - These earring stud blanks provide you a lot of possibilities. Just use hot liquid glue to stick gems or rhinestones on the earrings post flat pad, then you will get your own beautiful earrings. Enjoy that fun earrings making | [Wide Application] - These earring findings for jewelry making are suitable for daily use, parties and activities, they are prefect gifts for your friends and family members.You can also use them for decoration and artworks. Large amount of earring posts can meet your various requirements | [Good Replacement] - Our flat pad earring studs are sturdy and easy to use, please heat and rub the studs with alcohol before use. Earring backs fit to most of earrings, it is a good replacement for your losing earring backs and earrings