Locking Pin Keepers Backs Metal Locks Replacement Clasps for Jewelry Brooches Badge Name Tags Crafts DIY 30pcs, Nickel

Safe Pins Keepers: It can replace broken screws or locking devices on your brooches, badges, etc., so you can use them again instead of having to choose to discard them. Easy To Use: Spring-loaded fasteners do not require tools, very convenient. You only need to lock the spring-loaded fastener holes and push the base to secure them. Size: The hole diameter is 1mm, the upper diameter of the pin back is 9mm, the lower diameter is 6mm, and the height is 5mm. The pin back is suitable for most metal pins. High Quality: The rear lock of the pin is made of high-quality copper and coated with a silver coating to make the protective plug firm and not easy to rust. Multifunction: The pin lock is suitable for pins, badges, jewelry making, DIY crafts, name tags, display books, lanyards, bags, vests, hats, badges, collectibles, etc.