Description: Rugged design and construction, smooth, fast tracking horizontally and vertically Horizontal adjustment of the lens platform allows precise positioning to find the center of gravity of any size lens and camera system Calibrated scale for repeatable positioning of lenses Separate panning movement for total control Includes Arca-Swiss type standard quick release plate and built-in compass Specification: Load Capacity: 30 lb (13.6 kg) Tripod Mount: 3/8"-16 Height: 8.7" (22.1 cm) Material:aluminum alloy Size: 21X17.5X5CM Cutting-Edge Designed The GH1 gimbal head was completely designed to reduce weight and improve stiffness and overall strength. It can support 30 lb and only weighs 2.7 lb Ball Bearings Full ball-bearing support in tilt axis for zero static or dynamic friction, resulting in 100% smooth movement Quick-Release System The quick-release base allows the head to be used with any Arca-Swiss type QR standard plates. Plate is included which has a 1/4" screw thread for the camera Horizontal Mount with Lockout Knob A fully retained quick-turn knob allows infinite balance position adjustment and steadfast clamping. All-Weather Design From the hard powder-coated support arm that is also rubberized, to the stainless steel shafts, to the black anodized clamp, the finish will endure the worst a photographer can throw at it Package Includes: 1XHeavy Duty Gimbal Tripod Note: If the lock knob twist does not move, please tighten the lock first, and then twist again