SunwayFoto DPG-50UR 50mm Universal Quick-Release Plate Fully Arca & RRS Lever Clamp Compatible Square base mounts in both axis's allowing 90 re-mounting of camera. Precision CNC machined from solid aircraft-grade aluminum. Designed to fit Nikon cameras as D200, D300, D700 as well as Canon EOS 50D, 5D, 5DII, 7D, 1D and 1DS series and most other brands of cameras. Includes 2 allen wrenches and 1/4" hex screw & 2 safety stop hex screws