The Gitzo GS5370C Quick Release Plate is an accessory thats constructed out of high-quality steel designed to be constantly fixed to the base of the camera, which will enable photographers to easily attach and detach cameras from a tripod head. Its a C type plate, specifically designed to fit the Gitzo series 1-5 tripod heads. Additionally, it includes two screws for both 1/4" and 3/8 sizes.