The Leofoto BV-1 Fluid Video Head is a compact fluid video head with a flat base. Constructed of durable lightweight 6061-T6 aluminum, the head weighs just under 1 lb but can support a payload of up to 6.6 lb. The BV-1 uses an Arca-type quick release plate and features measurement markings on its base. The tilt and pan lock design allows locking one axis while adjusting the other, and the 360° panning and -75° to 90° tilting flexibility provide a wide range of movement to get the perfect shot. Supports Ccopes, Binoculars, and Cameras that weigh up to 7 lbs. Features: Base Diameter: 46mm/ 1.81"Height: 88mm/ 3.46"Weight: 400g/ 0.88lbMax. load: 3kg/ 6.61lbTilt range: +90° / -75°360 ° Panning Base Leofoto Mini Compact Fluid Head w/Tilt-Lock Design BV-1