Studio shooters will appreciate the ease of light-angle control offered by this heavy-duty telescopic boom, and location shooters will enjoy its portability. The length of the boom extends from 58" (147cm) to 101" (250cm) and a remote crank at the back end of the arm controls the direction of the light source mounted at the other end up to 135 degrees. It comes with a 5/8" stud and a 11 pound (5 kg) counterweight.