The SmallRig 3464B Expansion Cage is designed for Canon EOS R5, R6, R5 C, and R6 Mark II with the BG-R10 battery grip. It provides full-body protection, multiple mounting options, and quick accessory attachment. The three-point locking system with a 1/4"-20 bottom screw and two side clamps ensures stability. Features 1/4"-20 & 3/8"-16 threads, ARRI locating holes, a cold shoe mount, and QD interface. The Arca-Swiss base supports tripods and DJI RS 2 / RSC 2 / RS 3 / RS 3 Pro gimbals. Includes an integrated magnetic wrench for easy adjustments.