1、Compatibility: The thumb up grip is designed for A7CR, for A7CRII camera. This item has been designed to offer a secure girp while maintaining all the normal features and functions of the camera. 2、Aluminum Alloy Material: One piece CNC machined anodized aluminum alloy delivers high accuracy. Conveniently assembled and disassembled. Light weight, high strength, and durability. 3、Ergonomic Design: This grip provides a more ergonomic structure to the camera, allowing for greater one handed holding as well as more balance and less grip pressure required when shooting. 4、Convenience: It will make you comfortable and easy to hold the camera, and provide a secure hold during shooting. Sliding into the hot shoe, to protect the hot shoe from dust, and impact. 5、Enhanced Comfort: Thumb up grip hot shoe cover provides a better balance and grip for the camera, reducing hand fatigue. A secure hold during shooting, adds comfort while holding camera.