The 488 ball head features a strong die-cast aluminum housing plus an exceptionally hard, tough, phenolic resin ball that moves smoothly into position. The 488 features a double-groove for rapid side-to-side movement, and a separate fast-action ratchet lever for 360° pan and easy to grip locking knob for +90°-90° tilt movements. Suitable for Medium format cameras, or any 35mm or Digital SLR camera system. All ball heads fit any tripod with 3/8"-16 (Euro) thread. Same as the 488 but equipped with a Rapid Connect 0 (quick release) system. Maximum Camera Supported Medium format, 35mm or Digital SLR camera system Load Capacity 17.6 lb (8 kg) Height 5.25" (13.3 cm) Quick Release Yes Spirit Level Yes, separate horizontal & vertical Tension Control No Tripod Mount Thread Size 3/8"-16 Weight 1.8 lb (825 g)