Enhance your crafts and projects with these 17mm black shark fin-shaped spikes featuring a metal screw back. Each pack includes 20 pieces, perfect for customizing clothing and accessories. The spikes have a 7mm size and are designed for easy application with screws. Suitable for adding a bold, edgy look to jackets, tops, pants, shoes, leather crafts, belts, bracelets, bags, and more. Please note that slight color variations may occur due to lighting and monitor settings. The product may appear larger in images, so pay attention to the provided sizes. Backed by a 60-day warranty with a no questions asked refund or replacement, these spikes offer quality and versatility for your creative projects.