ITEM NAME:100 Pieces 6 x 5 mm Pin Keepers Pin Locks Pin Backs Locking Clasp with Wren X2D4 100 Pieces 6 x 5 mm Pin Keepers Pin Locks Pin Backs Locking Clasp with Wren X2D4 Durable and exquisite: made of nickel-plated copper, our pin keepers will not get rust easily, and with smooth surface and good appearance, it is sturdy enough for using a period Keep a pin in place: you will don't have to worry about pins falling off or losing with these practical items, use pin keepers to secure pins on leather, vest, jacket, cap, hat, work uniform, lanyard, bags, cards, it will be much convenient Easy to attach: just put a pin keeper in the back of your lovely pin, then use the looking tool to screw it up, the whole process is less effort and time-saving, nice supplies for every pins collectors and pins lovers size:6 x 5 mm Material:copper colour:Silver Package Contents: 100 * Pin keepers 10 * wrench.Durable and exquisite: made of nickel-plated copper, our pin keepers will not get rust easily, and with smooth surface and good appearance, it is sturdy enough for using a period. 100 Pin keepers. size:6 x 5 mm.