Since surfaces are designed with different shapes and angles; One type of razor can not be used to work on them; Therefore, a 3-digit set of flat iron in the dimensions of 36.5 * 2.5 * 3.5 cm, semi-circular sub-iron in the dimensions of 36.5 * 2.5 * 3.5 cm and sub-round iron in the dimensions of 36.5 * 1 * 3.5 cm can be very useful. The blades of this set have steel blades and their edges have the ability to sub-type all kinds of metal surfaces.