The Sirui TY60 Arca-Type Pro Quick Release Plate features Arca-style grooves to fit not only the Sirui G20 and K20x heads, but also quick-release clamps from several other manufacturers, such as Acratech, Foba, Graff, and Wimberley. The 2.36'-long plate's thumbscrew has a flip-up element that enables you to insert it tool-free into any camera's 1/4'-20 thread. The aluminum-alloy TY60 plate features a rubberized surface to keep your camera in place. In addition, two red anti-twist pins can be raised to keep the camera from shifting or twisting as the head is being adjusted. Sirui 6 Year Warranty Material: Aluminum Alloy Camera Type: All Cameras Ball Head Type: G-20 / K-20X / K-30X Dimensions ( L x W x H ): 2.36 x 1.93 x 0.43in/60 x 49 x 10.8mm