A very good replacement for the original kastetu from San Andreas. Plan to replace all of the pickups in the GTA. Brass knuckles is made factory, artisanal or home-made from metal, hard plastic (often made of textolite) of bones or other hard material. Usually in the plate made holes for fingers. Brass knuckles classic form have a common part (spiked or not), and rack position. Home-made brass knuckles can have a simplified structure (without emphasis, with a hole for the four fingers, etc.).Despite the simplicity of the design is very dangerous: whack the brass knuckles can cause severe injury or death.