SmallRig cage, an accessory mount used with the Sony α6700. Increases the grip's hold. There are also screw holes on the top of the camera, allowing for the attachment of arms, etc. "Missing Items" The screw to secure the HDMI is missing. The micro hex wrench is missing. There is an opening joint because the rig interferes with the battery door when changing the camera battery. I don't know if it can be used with cameras other than the Sony 6700.