The Ball NQ is a low profile ball and socket tripod head with corrosion-proof construction and an Arca-compatible quick release platform. The ball and its housing use no grease, but still provide a smooth ball movement (note that there is no friction control). A short-throw side lever locks both the ball and the revolving base, and is designed to be easy to use with gloves. The modest height of the head keeps the camera's centre of gravity as low as possible, which helps to create an excellent 7kg loading. It's equipped with the Q=Mount quick release, which includes a bubble level, and which will accept any Novoflex=Q and most 40mm size Arca-pattern plates (camera plate extra).