JANYUN 120 Pairs Butterfly Clutch Tie Tacks Pin Back Metal Locking Replacement with 4mm Blank Pins for Craft Making 4mm Silver Gold

No tools required Butterfly clutch with spring fastener slices allow you to install and remove it easily handy and convenient for use Tie tacks Clutch backs size is 11 mm in diameterpins size is 45 mm in diameter 8 mm in length with gold and sliver color small and low profile Versatile Blank pins and clutch back can be applied to make tie tacks badge insignia citation bars service bars and jewelry making etc Sturdy and durable Clutch backs and blank pins are made of nickel plated brass sturdy and light lock pins firmly and keep them secure Good for keep tie in place make some DIY craftssuit for tie tacks badge insignia citation bars service barssigns lapel pins and jewelry making