Not only does it look awesome, the Steel-Ice Cube provides cooling without dilution. Completely food safe, the cubes are stainless steel and have a non-toxic gel sealed inside. Just keep the cube in your freezer and drop it into your drink to drop its temperature instantly. 1" cube that can be imprinted on one side. Imprint area: 3/4" X 3/4" on one side. Laser.