Check the listing for details. Zipper Slider Retainers [50pcs] - #5 U Shape Top Stoppers - [Silver]. Condition: New. Listed at 7.16 USD. PRODUCT INTRODUCTION:1. Features & Applications:Good DurabilityOur zipper slider retainer is made of pure copper and has a surface electroplating treatment. Sturdy and durable, finely crafted, and not prone to fading or rusting.Extensive PracticalityThe closed zipper slider is perfect for repairing or DIY sewing most handicrafts, such as clothes, jeans, jackets, backpacks, bags, tents, wallets, suitcases, and canvas.2. Specification:√ Type: Zipper Slider Retainers√ Material: pure copper√ Color: Silver√ Overall dimensions: 4mm x 3.2mm / 0.16in x 0.13in (L * W)√ Package Includes: 50 pieces x zipper slider retainers3. Use and Warm Tips:Usage method: The U-shaped stop is used to lock the top of the zipper. Using a zipper tail clip is a simple and convenient option.