Features: *CNC Precision Machining, Anodic Surface Treatment, Corrosion Resistance and Wear Resistance. *It has three 3/8"-16 threaded hole to directly mount the clamp onto a tripod/monopod, and also comes with three 1/4"-20 bushing adapters. * Build-in bubble level, easy to find correct shooting direction no matter horizontal or vertical shooting. * Fast loading base with antiskid lock function, protect your camera from falling off. . * Add 1/4'' conversion thread to be directly connected to the ordinary camera. * Compatible with any Arca style plate such as, RRS, Wimberley, Jobu Design, Arca Swiss, Kirk Enterprises, Markins, etc. *Jaw can be opened from 39mm to 43mm. Specifications: * Material: Aluminum Alloy *Color: Black *Size: 0mm x 50mm x 20mm *Weight: 95g Package included: 1 x 50mm Quick Release Clamp