Use this 150-piece set of silver spikes and studs for clothing to decorate your leather goods. The quality metal studs come in 13 different shapes to provide you with a wide range of possibilities to craft fun and unique designs. Use the spike studs to decorate and customize jackets, belts, backpacks, handbags, dog collars, and choker necklaces. The studs range from 7x9mm to 10x26mm, perfect for applying to any small DIY crafts. Our studs and spikes set features a sturdy compartmentalized storage box and installation tools to give you all you need to start accessorizing!Studs and Spikes for Crafts: Our set comes with 150 total screw on silver spikes and studs in 13 different shapes, 1 screwdriver, 1 punch tool, 1 instruction sheet, 1 clear storage box, 150 metal screwsMulti-Purpose: Use the metal studs for clothing such as leather jackets, shoulder pads, belts, or create custom backpacks, chokers, dog collars, bracelets, and headbands to match any punk rock styleEasy to Install: Simply use the included punch tool to make a hole, place the bottom screw through the material; place the spike or stud onto the screw, then tighten with the screwdriver to secureAssorted Sizes: These cone spikes screwback studs come in 10 different sizes with the largest size measuring 10x25mm and the smallest measuring 7x9mm; each small screw measures 6mm to attach the studsSimple Storage Organization: The clear plastic 15 grid storage box has a flip lid and removable bezel to ensure the various spike studs stay organized; easily store the box in cabinets and drawers