The dedicated Camera Cage from SmallRig is a protective aluminum frame that enables you to mount accessories onto your Canon 5D Mark III or 5D Mark IV. Two cold shoes, a NATO rail, and multiple 1/4?-20, 3/8?-16, and ARRI-style accessory threads are built into the cage?s top and sides. Access to the camera?s controls, compartments, and connectors is maintained when the cage is fitted to the camera. The versatile cage features a 1/4?-20 camera mounting screw and rubber pads on the bottom camera mount to protect and secure your camera. A screwdriver is included to tighten the camera onto the cage, and it stores on the bottom of the cage. Compatibility Canon 5D Mark III or 5D Mark IV