Yatim DIY Human Brain Shape Silicone Baking Mold for Homemade Soap, Cake, Cupcake, Bread, Muffin, Pudding, Jello, Bread, Cheesecake, Cornbread, Biscuit Main ingredients are 100% food grade silicone which are sand, stone, crystal of natural ingredients,neither rubber or plastic! They are Low-carbon environmental! Mold Size: 8.7 x 6.7 x 2.3 inch. Total 4.9 oz. Has stable structure and good mechanical properties, thus it has the extreme temperature resistance, heat resistance range. Minimum of heat-resistant temperature 40 degrees below zero, the highest temperature of 230 degrees. Still keep uniform if frozen or heated Corrosion resistance perfermance from the detergents and other kinds of corrosive substances, also easy to clean. After use, any material will not stick on the mold Create your own special desserts or homemade soaps with the silicone for muffin, cupcake, brownie, cornbread, cheesecake, panna cotta, pudding, jello shot and soap mold.