1、Compatibility: Specifically designed to fit for A7M4 A7R3 camera, this cage can avoid obstructing camera buttons and battery compartments, ensuring unimpeded access to key controls and uninterrupted use of flip up screens or battery replacement. 2、Aircraft Grade Aluminum Alloy Material: Crafted with durable and strong aluminum alloy, providing reliable protection for your camera and offering excellent grip for photography. 3、Versatile Expansion Ports: Equipped with multiple 1/4 screw holes, 1/4 for Arri positioning holes, 3/8 screw holes, and cold shoe interfaces, offering a wide range of compatibility and expandability for attaching various accessories. 4、Seamless Transition between Landscape and Portrait Shooting: Comes with a convenient wrench for easy installation and disassembly, allowing for effortless switching between horizontal and vertical shooting orientations. 5、Connectable to Other Accessories: Enables quick equipment changes and can be used in combination with external monitors, tripods, microphones, and more to enhance your shooting experience.