Sculpey molds are made of silicone, so no messy release agents are needed. Simply mold, flex, and release. This mold is great for beginners and first time Sculpey users. It works with polymer clays, air dry and non-dry modeling clays, plaster of Paris, craft soap, and candle wax! It is oven safe and easy to clean. Shapes include feathers, heart, star, geode, dream catcher, and more. Follow all baking directions on package before use. Details: Boho Chic design 3'' larges mold cavity Includes squeegee Oven safe, easy to clean, nontoxic Silicone For ages 14 and up