Features: Universal quick installation board clamp base, quick disassembly and assembly, suitable for switching between various PTZ/stabilizer. Quality aluminum alloy material, hard anodized oxidation resistant. Both the base and top cover is compatibility with 38mm specifications, compatible for standard devices on the market. Reserved 1/4 and 3/8 screw holes at the bottom, which can be directly installed with tripods or mounted on ballhead. Compatiblility with stabilizers, used in combination to increase the distance between the stabilizer and the camera, resulting in better operational performances. Specifications: Material: Aluminum Alloy Color: Black Size: approx. 53x38mm/2.08x1.49inch Package Includes: 1Pc 38mm Quick Release Plate Clamp Base note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.