Features: These brooch pin backs are made of sturdy coppermaterial, small in size, lightweight and durable for long time use. The brooch locking pin back is applicable to uniform, badges, name tags, brooch, tie tack lapel. Also can be used for jewelry making and DIY craft projects. Features -Color:Silver -Material:Copper -Size:1.00X0.70X0.70cm/0.39X0.28X0.28in -Made of safe and reliable material, these pin backs provide good grip of pin, keep it stay in place. -Our Locking Pin Keepers can be firmly fixed without tools, just push the base to lock it, or pull the base and pull out the badge. -Great replacement for pin clutch backs, these pin backers are a must-have for your uniform, holding badges or name tags. -Can be pin clutch back for most lapel pin, flat studs, service bars and jewelry. -You can also use tie back to fix objects such as photos, fabrics, cloth, maps, scrapbooks, etc. Packing list: 25 x Brooch Pin Backs