Stainless Steel Badge Lapel Pin Back,50 Pieces Butterfly Clutch Metal Backs Replacement Round Head Brass for Craft Making Pins Service Bars and Jewelry

Quality Material: the pin backs are made of brass with a Silver colour coating which makes it strong, durable and long-lasting to use. Size：Blank pins measure about 11.5mm in diameter, 5mm thick, hole: 1mm. Easy to use: featuring a spring-loaded fastener, these pin backings are easy to put on and take off; Simply push to secure onto pin post and pull the trigger while holding onto your pin to release; These locking pin backs are a great alternative to rubber clutches. Delicate Design: the spring-loaded fastener for easier on and off, Simply need you to push to lock them, then push on the base to secure them and pull to loosen the lock and remove. Wide Applications: pin backs are suitable for pins, insignia, name tags, display books, lanyards, bags, vests, hats, badge, collectibles, etc.