The Gitzo GH5381SQD Systematic Series 5 Quick Release D Ball Head is a low-profile tripod head that fits into the upper casting of any Systematic Tripod or attaches to any tripod via its 3/8? thread, providing an ultra-stable platform. The D-profile head is supplied with an Arca-Swiss compatible plate, enabling the included Quick Release plate to be snapped into the head from above, which is faster and easier than sliding it in from the side.With the GH5381SQD, cameras can be mounted very close to the top of the tripod for optimal support. It tilts up to 28? in all directions, and features a hydraulic locking system for fast control and smooth locking speed. A ring adaptor (GS5300S) is included and is required when using this head with a Series 5 Systematic Tripod. This tripod head model also features the new Systematic safety catch: when used together with the latest Systematic tripods equipped with the safety button, the head is held safely in place until the release button is pushed, so that it stays safe, along with any camera equipment attached to it, even if the tripod?s top casting is inadvertently left open. The tripod head is made of high-quality, resistant aluminium, weighs 930 grams and secures an impressive payload of 30 Kg. It includes a built-in spirit level to facilitate flawless framing.