The cam operated, helical groove design provides the user with the smoothest, quietest, most durable, and roadworthy throw-off ever made. Close-tolerance CNC machined components are suspended in a special synthetic lubricant that give it an effortless and fluid movement. To increase resonance, very thin rails keep the remainder of the body elevated away from the shell. It is manufactured from solid machined metal parts consisting of billet aluminum, and stainless, hardened steel.Cam operated, helical groove design Close-tolerance CNC machined components Special synthetic lubricant for fluid movement Elevated body increases resonance Manufactured from billet aluminum, and stainless, hardened steel