Details: The Cullmann Deluxe Sliding Quick Release Plate is a large, 90mm long, dovetailed sliding quick release plate that features adjustable 1/4"-20 and 3/8" camera screws and a video pin. Compatible with Cullmann heads and q.r. systems that accept sliding plates. A quick release plate can be kept attached to the camera's base at all times, and allows the user to quickly and easily attach or remove the camera from the tripod without having to waste time fumbling with the threaded mount.