Custom Loge Ice Stamp for Ice Cube, The Best Gift for Summer! Our ice stamp can be applied to standard Ice Cubes(Square) and Ice Balls. Materials : Brass (70% copper and 30% zinc). Thick and high quality Brass which is very durable to use. Size: 0.5 cm-13 cm. Thickness: 9 mm - 10 mm. Depth to engrave: 3 mm - 3.5 mm. SIZE in OPTION is for the LONGEST SIDE OF YOUR DESIGN !!