Our air-dry clay is a self-hardening clay that has no need to be cured in an oven or a kiln. Suitable for slab, coil or even wheel-thrown projects. May be finished with paint, stain, or with gloss fixatives. It will completely harden in a few days and is not food safe or good for containing liquids. This clay contains fibers that aid in strength while helping to reduce shrinkage to 1-2%, making it perfect for taxidermist work. Our Air-Dry Clay is AP (Non-Toxic)