100 Pcs Locking Pin Backs 11mm Brooch Pin Back Butterfly Pin Keepers Insignia Cl

High Quality Metal Spring Butterfly Clutch Pin Backing [Material] : This pin back is made of metal, strong and durable, easy to use, and can hold the pin firmly. [Size] : Pin Backs Diameter 11.5mm/0.45in [Quantity] : 100 Pieces; Colour: Gunmetal. [Applications] : Metal backs can be used for making tie buckles, name tags, badges, as well as for jewelry making, accessory making and other handmade craft making;