Benro Low-Profile Triple Action Ball Head (G3) Can support up to 40 lb Features a large locking knob that enables control of the ball's motion and 360 Degree panning, and a separate knob that adjusts friction control. A numbered scale on the base of the ball head assists with accurate repeat pans, and a bubble helps ensure that the head is level to the horizon. Also features a 90 Degree notch that helps you to quickly switch your camera to portrait mode. Ideal for location shooting or for studio use. Limited 3-Year Warranty (Extended to 5-Years with Online Registration).