Desmond DMH-01 & 50mm DAC-01 Clamp Tripod Tilt Head Arca-Swiss / RRS Lever Compatible Modular design with both top and bottom Arca / Really Right Stuff compatible dovetails. Fully compatible with RRS Lever Clamps. All Metal knobs. No plastic or rubber parts. Max load: 10kg (22 lbs). Includes 50mm Desmond Dac-01 Arca compatible Clamp.