1. Using aviation aluminum material 2. The surface is anodized to improve its hardness and wear resistance and enhance corrosion resistance. 3. The handle is equipped with cold shoes and different screw interfaces, which can be connected to different external devices for expansion. It can easily move the handle position and adjust the center of gravity. 4. The cage has a variety of screw interfaces for connecting camera peripherals; 5. The new quick-release plate with positioning can be installed quickly, with one button tight and the battery compartment is unobstructed. 6. Adjust the catheter to support the body when used with a long zoom lens. Achieve three points to make shooting easier and more stable. 7. Can be used with the follow focus, microphone and monitor to further improve professional shooting applications. 8.The bottom of the cage is designed with a universal 38mm international standard tripod head, which can be mounted on a tripod of 38mm head directly. 9. Applicable models: A7 series A7K, A72, A73, A7S2, A7R3, A7R2, A7X and other cameras