1、Compatible Camera Model: Camera video cage is suitable for Sony A7M4 and A7R3 cameras. Please confirm your camera model before purchasing. 2、Complete Interface: The camera cage has rich expansion ports, which can quickly switch devices. Built in multiple 1/4in screw holes, 1/4 for Arri positioning holes, 3/8in screw holes, and cold shoe interfaces. 3、Perfect Cutting: The design avoids the location of the camera keys and does not affect the keys and battery compartment. The position of keys shall not be blocked during use, and the flip screen and battery disassembly shall not be blocked. 4、Flexible Switch: With the camera cage, the camera can be freely switched between horizontal and vertical shots. In addition, a wrench is attached, which is convenient for disassembly and assembly. 5、Plenty Extension Possibilities: With the camera cage, the camera can be connected to other accessories, and can be used with an external monitor, tripod, microphone, etc. 1 x Camera Cage1 x Inner Hex Wrench1 x Portable Wrench Item Type: Camera CageMaterial: Aluminum alloyWeight: Approx. 269g/ 9.49ozApplicable Model: For Sony A7M4 A7R3 cameraInterface: multiple 1/4in, 3/8in, cold shoe, for Arri positioning interfaces