Brass knuckles (also known as knucks, knucks, brass knucks, knucklebusters, knuckledusters, knuckle daggers, an English punch, a paperweight, or a classic) are hand-to-hand combat "fist-load weapons." They were widely used in England and America during the 19th century. Now they are popular among boxers and martial artists as training tools. Brass knuckles are made from a heavy sheet brass that has been folded over to make a fist. The ends of the fingers and the tip of the thumb are flattened with a hammer or rock to produce a sharp edge. A boxer or fighter using brass knuckles inflicts deep cuts and bruises on his opponent's face, hands, and arms. Because of this, they are now banned in most sports leagues and are considered weapons by many laws. In fiction, brass knuckles are common weapons used by gangsters and mob bosses. They often appear in crime films and novels as symbols of evil and brutality. In video games, players use them as melee weapons. They are found in many fighting games including Street Fighter, Mortal Kombat, and Dead or Alive. Brass knuckles also appear in many other games such as Tony Hawks Pro Skater, Tony Hawk's Project 8, and SSX.