Versatile Crafting - The four piece texture wheel set is perfect for use with all types of clay: polymer oven-bake clay, air dry clay and non dry clay. The handle and all four wheels are made from polypropylene and are compatible with polymer clay. The tools are made of high quality materials and are durable for all types of clay projects from jewelry making, mixed media, sculpting and home décor! Tips for using the Sculpey Tools Texture Wheel Set - Easily switch out the wheels onto the handle for next patterns whenever you want!- Ergonomic handle allows for comfort crafting - Always protect your work surface before playing with polymer oven-bake clay. Use the Sculpey Tools oven safe work mat, a piece of glass, a ceramic tile or metal pan. - Simple to use- roll out a flat sheet of clay, start at the end of the sheet and roll forward. - Then cut your textured sheets into what shapes you want using clay blades or metal cutters - Add mica powder to the textured surface before baking for a beautiful look - Great for all types of projects from jewelry making, mixed media, sculpting and home décor! - The tools are easy to clean with soap and water or use a baby wipe