The grouping of buttons on the tunic is a common way to distinguish between the regiments of Foot Guards. Grenadier Guards' buttons are equally spaced and embossed with the Royal Cypher reversed and interlaced surrounded by the Royal Garter bearing the royal motto Honi soit qui mal y pense (Evil be to him who evil thinks). Their "Buff Belt" brass clasps also carry the Royal Cypher. Modern Grenadier Guardsmen wear a cap badge of a "grenade fired proper" with seventeen flames. This cap badge has to be cleaned twice a day, once in the morning and once in the afternoon, as it is made from brass and a tarnished grenade is frowned upon by all in the regiment.