Pin buckles can be used for collars, ribbons, uniforms, badges or name tags, etc., to support, secure and store pins, earrings, badges, and other accessories, and pin locks can also be used to make DIY handicrafts.SpecificationColor: BlackMaterial: RubberOverall Dimensions: 14 x 14 x 8 mm / 0.55 x 0.55 x 0.31 inch (L*W*H)Hole Diameter: 1 mm / 0.04 inchPacking List: 100pcs x Star Shape Pin BacksAdvantages1. The pin buckle is made of soft Rubber material, which will not damage skin or clothes.2. Pin backs are small and lightweight, easy to carry and store.3. The pinhole is small and has a good grip, which can hold the pin firmly.InstructionPut the needle pin into the hole of the pad to fix the needle cap, easy to use.NOTE: Please pay attention to checking the pinhole size before placing an order.