These units provide full 360+ degree, smooth pans and tilts for your camera. The proportional joystick fitted controller mounts to the jib arm and has overall speed and ramping knobs as well as directional preference switches. The MotorHead HD unit carries cameras up to 30 lbs. with extra clearance for matte boxes and long lenses. Mounting is via (1) 3/8" knob bolt. This unit mounts in either underslung or overslung mode.