50pcs Locking Pin Keepers Backs， Doubletwo Pin Keepers Backs Pin Locks Metal Pin Backs Locking Clasp<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Size: 1 cm in diameter， 0.6 cm in height; Material: nickel-plated copper pin lock backs</li><li>Replacement for pin clutch backs</li><li>No Tools Required that we have a spring loaded fastener for easier on-off action</li><li>Great for keep tie in place， make some DIY crafts， badge insignia， jewelry making etc.</li><li>Good for pins， name tags， etc.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51d3H-XnQ4L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31U8LxWUvxL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41-kutoVCOL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31iD2zXf88L.jpg" noproxy>