The Sirui K-20x Ball Head is an extremely sturdy head with control knobs for pan, tilt, and tension, plus an Arca-type clamp for the included quick release plate. The pan, tilt, and quick release knobs are all separate, while the tension knob is integrated into the ball-locking (tilt) knob. The head tilts 90° for portrait orientation.

The interior ball locking of the K-20x head has a sphere tolerance of 0.01mm, and it's equipped with an orientation-memory locking dial. This helps yield a high load capacity of 55 lb. The quick release clamp features a secondary release button that prevents any inadvertent disengagement of the camera/plate from the clamp, thereby adding to the head's overall security & stability. The Arca-type platform conforms to standard sizes, so you can use compatible plates from other manufacturers.

The three control knobs allow a photographer to exercise extremely fine control over the orientation of the camera, whether it's a DSLR, 35mm, medium-format camera, or even a camcorder. Pan, for instance, can be adjusted while the tilt stays locked, enabling precise movement that's measurable – there are degree markers at the panning base for panoramic photography.

The K-20x is CNC-machined from an aircraft-grade aluminum alloy and anodized with an oxidation treatment that ensures a durable, high-quality finish.

The W-2004 Waterproof Aluminum Alloy Tripod from Sirui features a Waterproof Sealing System that prevents water, dust, or other particles from entering the leg tubes. The tripod extends to a maximum height of 70.9", holds up to 39.7 lb, and weighs 4.6 lb. Reverse-folding legs wrap around most ball heads allowing the tripod to fold down to 20.5".

The 4-section legs are individually adjustable and are held in place with twist locks. One of the legs is removable and can be attached to the center column to make a full-sized 69.7" monopod. The removable rubber feet can be replaced by stainless-steel spikes, affording the tripod stability on a variety of surfaces. The split center column allows the tripod to reach its minimum height of 6.1", and a ballast hook on the center column can hold a stabilizing weight.