The Wooden Camera 256200 Touch and Go System is an industry standard, quick release system compatible with OConnor 120mm Euro, Sachtler 35, and Ronford Baker RBQ. Wooden Camera's version is up to 1/3 lighter than other systems due to the recess designs on the receiver and plate. Once the plate is attached to the camera by included 3/8"-16 screws, simply drop it into the base and the plate will snap into locked mode. Push the lever further to clamp the Quick Release Plate in place. To remove, pull the lever and push down on side release button at the same time.