Feature: 1. Aluminum Alloy Material: Using high quality aluminum alloy material, CNC technology, anodizing treatment, sturdy, durable and long service life. 2. Porous Design: The porous design around camera cage minimizes the weight of the cage, thereby reducing physical energy consumption. 3. Cage Structure: There are 1/4 inch and 3/8 inch threaded holes, cold shoe mount, and for Arri positioning hole for external interfaces on the camera cage. 4. Battery Compartment Opening: The bottom is designed with a battery compartment opening, which does not affect the replacement of the battery. 5. Threaded Holes: There are multiple 1/4 inch and 3/8 inch threaded holes at the bottom to assist external monitors, microphones, lights and other accessories. The bottom has a non slip gasket to prevent scratches. Specification: Item Type: Camera Cage for Sony A7M4 Material: Aluminum Alloy Color: As Pictures Shown Weight: Approx. 291g / 10.3oz Application: for Sony A7M4 Package List: 1 x Camera Cage 3 x Right Angle Wrench 1 x Round Flat Wrench