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, 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: 9.5 * 6.2 * 1.5cm / 3.7 * 2.4 * 0.6in Item Weight: 86g / 3oz Package Size: 10 * 7.8 * 2.2cm / 3.9 * 3.1 * 0.9in Package Weight: 100g / 3.6oz Package List: 1 * CL-50LS Quick Release Clamp