Screwback DIY studs are great for Punk shoes, Punk jacket, dog collar, leathercraft and more. These spikes and studs are also ideal for any DIY project. Description: Cool and fashion cone studs, perfect craft accessory Fully showing your special taste and personality Suitable for decoration on your DIY bags, leather bracelets, clothes, shoes, etc Spike Size (Base Dia. x H): Approx. 7 x 9 mm Material: Aluminum Color: Silvery Package Includes: 20x Cone Studs 20x Matching Screws