Check the listing for details. 70 Sets Studs and Spikes Leather Rivets Cone Spikes Button Head Gold Tone. Condition: New. Listed at 15.94 USD. Leather rivets screws are widely used for DIY projects such as belts, handbags, bags, shoes, dog collar, jacket, clothes, leather, leather saddles, wallets, fabric, leathercraft, decorative, crafts, and so on. It's an useful accessory for your daily.SpecificationMaterial: alloyScrew Size: 5.5*7* 3 mm ( M3)Spike Studs Size: ( Head x Bottom x Height )4x6x8.5mm / 0.16x0.24x0.33 inch5x8x8.5mm / 0.2x0.31x0.33 inch6x8x8.5mm / 0.24x0.31x0.33 inch7x9x9mm / 0.28x0.35x0.35 inch8x10x10mm / 0.31x0.39x0.39 inch9x10x12mm / 0.35x0.39x0.47 inch10x11x11mm / 0.39x0.43x0.43 inchPackage list:70Set Round Head Leather Studs Rivets ( 10 sets for each size )AdvantageStuds and spikes are made of alloy, which is rust-proof, durable, non-fading, anti-corrosion, anti-oxidation, round and smooth, flat and burr-free, will not make scratches on leather.