Sculpey Molds are made of silicone, so no messy release agents are needed. Simply mold, flex and release. Great for beginners and first time Sculpey users. Works with polymer clays, air dry and non-dry modeling clays, plaster of paris, craft soap & candle wax! Bakeable Silicone Lace- Add some sophistication to your craft projects with this lace silicone mold. Simply fill the mold cavities with the liquid bakeable medium, squeegee off excess and bake. Easy to use, very flexible and non-toxic. Easy to clean with soap and water. Oven safe high quality silicone, can be used up to 450 deg.F. Measures approximately 4.75 in. x 2.13 in.