Features: This Quick Release L Plate for all Benro Ballhead. Safe Screw installed in both side to prevent drop of camera by accident. You can change the location of the screw to fit different cameras. This Quick Release L Plate System has been designed to be compatible with other brand quick release systems. Suitable for most ball heads. Built with excellent materials, offering outstanding quality. Specifications: Material: Metal Alloy Color: Matt Black Length: 75mm (height) x 110mm (length) x 39mm (width) Width: 39mm (universal width of Arca-Swiss Standard QR plates). Mounting Screw Diameter: 1/4" (the screw size that connecting the QR plate and camera) Compatibility: Arca-Swiss Standard Compatible With: All Arca-Swiss standard quick release plates, including Benro / Arca Swiss / Markins / RRS / Kirk / Wimberley / SUNWAYFOTO and etc. Package Includes: 1 X Quick Release L Plate with 1/4" Screw