Product description Size: 135*75*mm Colour: Black Material: aluminum alloy Package content: 1*L vertical clapper 1. High Quality Materail: Made of Aluminum Alloy with precise and Oxidation treatment. Sturdy and Durable. Equipped with an anti-slip screw which works with U-shaped grooves of the clamp to avoid accident drops. 2. Standard Screw Sockets: Several universal screw sockets to install multiple devices like microphone, speedlite, panel light, Led monitor and more accessories for vloging, live streaming and video shooting. 3. Vertical and Horizontal Photography: Can switch from vertical to horizontal shooting quickly and work with tripod, video track slider, stabilizer . 4. Universal Plate: Compatible with socket or screw for most of DSLR. 5. Easy to Install: Both plates are compatible with standard slot which can be installed to the clamp. Or you can install the shorter plate to quick release plate withscrews directly.