Features: Made of high quality aluminum alloy, CNC precision machining, surface anode anti-oxidation treatment. With a lever so that can be tighted for ball head, tripod or monopod. Knob-type design for strong universality. Can conveniently adjust the width of clamp from 38mm to 47mm. Safety stop relief grooves for protecting your camera from accident drops. With 1/4" to 3/8" adapter screw and 1/4" screw mount quick release plate, adopts for Arca Swiss standard, compatible for Arca Swiss standard quick release plates, ball heads and tripods, such as for RSS, for Arca-Swiss, for Kirk, for Wimberley, for Markins, for Sirui, for SUNWAYFOTO, for Benro, etc. Specifications: Brand: Andoer Model: CL-50LS Material: Aluminum alloy Color: Matt black Mounting Screw: 3/8" (with a 3/8" to 1/4" adapter) Compatible: For Arca Swiss standard all quick release plates, ball heads and tripods Item Size: 8.9 * 5 * 1.9cm / 3.5 * 2 * 0.8in Item Weight: 118g / 4.2oz Package Size: 9 * 8.3 * 3.4cm / 3.5 * 3.3 * 1.3in Package Weight: 137g / 4.8oz Package List: 1 * CL-50LS Quick Release Clamp & Quick Release Plate