This is our traditional size European cube, the angular version. The AAA batteries are to show scale. Size and shape vary, but approx size is 25mm x 25mm x 35mm.
Traditional European Size Cube - Angular
We've found the best way to polish your ice before photographing is to wash with warm soapy water, and avoid any abrasives or other chemicals. Should your ice develop minor surface blemishes in use, these can generally be removed with a spot of toothpaste on a microfibre cloth and used as a mild abrasive polish would be used when T-Cutting a car's paintwork. We do not recommend using T Cut.