Premo Sculpey is soft enough to bend and firm enough to hold detail. FOR BEGINNERS OR SKILLED CRAFTERS - Premo Sculpey is an oven-baked polymer clay. It's perfect for all levels of skill and projects due to its softness and flexibility. OVEN-BAKED CLAY - Premo clay will stay soft until you're ready to bake in the oven. Just bake in your home oven at 275 degrees for 15-30 minutes. Once baked, you can sand, paint, drill or carve your projects. EASY CLEANUP - Any unbaked clay can be stored away and reused.