These black PVC rubber butterfly clutch pin backings measure 11 mm in diameter and 7 mm in height, designed for pins 1 to 1.2 mm thick, providing secure and stable fastening. The soft rubber material offers a firm grip that prevents pins from slipping or falling off while protecting against sharp metal edges. The simple push-fit design allows smooth attachment and removal, suitable for lapel pins, badges, name tags, tie tacks, and uniform accessories. Ideal for DIY crafts, sewing projects, corsages, jewelry making, and replacing metal pin backs for a safer and more reliable hold. These black PVC rubber butterfly clutch pin backings measure 11 mm in diameter and 7 mm in height, designed to fit pins 1 to 1.2 mm thick for secure and stable fastening. The soft rubber material provides a firm grip that helps prevent slipping while covering sharp metal ends for added safety. The push fit design allows easy attachment and removal, making it suitable for lapel pins, badges, name tags, tie tacks, and uniform accessories. Ideal for DIY crafts, sewing projects, corsages, and jewelry making, these pin backings offer a dependable alternative to metal clasps.