Pack of 100 GUNMETAL Square Pyramid Studs These are in 10mm Each pack contains 100 Top Quality Metal Studs. Each stud is brand new, made of quality metal and has prongs to attach it securely onto fabric, leather and just about any other material. Ideal for shoes, Bags, Belts, Jeans and more!! Available in other colors. Also available in 7mm, 9mm and 12mm. Check out our store. We have hundreds of other Studs, Rivets and Spikes Available!