"The Manfrotto professional fluid video system MVH502,546GB-1 includes the fluid video head (75mm half ball) MVH502A and the pro video tripod with ground spreader 546GB. The MVH502A is a professional video head and has a 75mm half ball video tripod mount. It's designed for use with HDSLR cameras and latest interchangeable lens cameras. It offers professional features such as high-performance variable fluidity and a counterbalance setting designed to match the weight of the most popular cameras and their accessories as external monitors, lights or microphones. The 502 head has a pre-set counterbalance of 4kg (8.8lbs), but is able to support equipment of up to 7kg (15.4lbs). The 502 head has two Easy Link connectors that allow an external monitor or other accessory equipment to be fitted directly on the head. The 546GB is a two-stage, extremely rigid, stable tripod. It can carry loads up to 20kg (44.lbs). The 546GB has a die cast aluminum crown with a built in 75mm bowl. The tripod's telescopic ground-level spreader helps set leg angles accurately. Leg locks are secure and reliable and spiked feet with rubber overshoes are provided for solid grounding on both uneven terrain and smooth floors. The tripod can be used with various dollies.|75mm Ball Base Fluid Head: 12.2 lb payload|75mm Ball Base Fluid Head: Spring-loaded counterbalance supports up to 8.8 lb|75mm Ball Base Fluid Head: Patented bridging technology protects the pan friction control from knocks|75mm Ball Base Fluid Head: Includes 504PLONG quick release plate and a pan bar|75mm Ball Base Fluid Head: Quick release plate is slide-adjustable 3.27""|75mm Ball Base Fluid Head: Continuously adjustable pan and tilt drag|75mm Ball Base Fluid Head: -80deg. to +90deg. tilt range from front to back|Bowl Base Aluminum Tripod: Extends in two stages from 12.8"" to 62.4""|Bowl Base Aluminum Tripod: Spiked feet with rubber overshoes|Bowl Base Aluminum Tripod: Telescopic ground-level spreader|Over-the-Shoulder Carrying Bag: Red and black, padded bag for both the tripod and head|Over-the-Shoulder Carrying Bag: A zipper runs across the full length"