The SBH-808DQ Ball Head from Slik features separate panning and ball positioning locks, as well as tension control, and a round quick-release plate with a cork padded surface to prevent camera twist. This aluminum ball has a numbered scale around the base for precise panning. It attaches to a tripod via a 3/8"-16 thread, and a camera attaches to the 1/4"-20 threaded stud on the QR plate. A bushing adapter is included for mounting the ball head to a 1/4"-20 threaded stud.