The 90mm Quick Release Plate (patent pending) for Genie II Linear and Magic Carpet Pro is specifically designed to keep your camera secure while keeping you mobile. One of our greatest on-location time-savers. Simply attach the QR Plate to your camera or tripod head and click it straight in to shoot. Add one to the base of your equipment to quickly and effortlessly connect your gear to the Manfrotto Quick Release system. Both the Genie II Linear and Magic Carpet Pro carriage use the Manfrotto Quick Release system and 90mm QR plates come included in the box. This part is available as an optional spare or to replace a lost or damaged part.