The Kupo 20-Inch Hex Grip Arm - Silver is an innovative accessory for every studio or outdoor location set. It comes with a baby hex pin at the end, which has six milled flat surfaces for mounting light fixtures and other accessories, just like a mini boom. The 2.5-inch grip head at the end of the arm’s 20-inch steel tubing has a T handle and roll bearings for torque. Also, it comes with a pair of rotating aluminum discs that are attached to a 5/8-inch receiver. Further, each of the discs has four differently sized, V-shaped jaws for mounting any accessory with a 5/8-, 3/8-, 1/2-, or 1/4-inch tubing or mounting stud. Also, the arm is designed with a rough texture that ensures the arm is not slippery.