Mini-Factory 300 PCS Nailhead DIY Metal Dark Grey Punk Spikes Spots Pyramid Studs For Leathercraft(Size:10MM, Color:Dark Grey, QTY:300 Pieces) DIY for Decorating your Bags, Belts, Leather Bracelets, Shoes, etc. Color: Dark Grey, Size: 10 MM, Material: Alloy. Made of high Quality Alloy, easy set by hand on leather and fabrics. Pyramid style, excellent DIY accessory.