This product includes Food-Grade Stainless Steel Ice Cubes with a non-toxic gel inside, designed to be non-diluting and reusable. The cubes come in a protective plastic storage case, meet FDA requirements, are BPA free, and are recommended for hand washing. They are available with silver cubes in a clear case and can be customized with silk-screen printing or optional laser engraving. The approximate size of the case is 2 ½" W x 2 ½" H.