Manfrotto Top Lock Quick-Release Hydrostatic Ball Head is a compact, hydraulic locking system mechanism providing strong lock for very little user effort. This Tripod Accessory from Manfrotto is perfect for heavy camera equipment, and comes equipped with the faster, more secure, easier to use 468MG version of the Q6 Top Lock quick release system. Manfrotto 468MG Tripod Ball Head's camera plate clicks into the clamp from above, and as soon as it engages, it triggers a safety pin that stops the plate and camera from sliding out accidentally. Even before the clamp is locked, the camera is securely supported. The clamp has 3 bubble spirit levels (one for each axis of rotation) to facilitate precise framing and help produce straight images in-camera, ensuring the camera's full frame is usable and reducing post-production time. Manfrotto Q6 Ball Head System is also compatible with Arca-style quick release plates and heads from other manufacturers. Made to meet the demands of professional photographers, Manfrotto Bogen Tripod Accessories provide easy-to-operate and durable devices to help you capture images in a snap.