Heart Box with Cover Chocolate Candy Mold Valentines Day 3056 FREE SHIPPING Cavity size 4" x 4" 2 cavities per mold All molds are suitable for Chocolate, Soap Making, Butter Molding, and Ice Cubes! These are not suitable for hard candy, they are not meant to withstand extremely high temperatures. FDA Approved Plastic / wash in warm soapy water (do not put in dishwasher), and they will last for years!