Leathercraft Accessories Bronze Cone Spike and Studs Metal Screw Back Spots for Leathercraft Rivet Bullet Leather Clothing DIY Leather Crafts - 100 Sets 9mm (100pcs, Bronze) Material: Zinc Alloy Metal (Lead And Nickel Free) Size - Height: 9mm, Base: 7mm Screw Type: Phillips/ Slotted Shape: Round Cone Bullet Spike Color: Bronze (Free Shipping)