Designed for use with 100mm bowl tripods, the Acebil CH4 Fluid Head features a 100mm ball design and supports loads up to 26.4 lb. A 6-step counterbalance allows you to compensate for the weight of your rig for better balancing, while independent 4-step pan and tilt drag settings provide adjustable resistance for precise movements. A sliding quick release plate attaches to your camera via a 1/4"-20 or 3/8"-16 screw, for easy attachment and removal. To assist in keeping your shots level, even in dim environments, the head has a built-in LED illuminated bubble level. A pan bar comes included and can be attached on either the left or right side of the head.