Mugast Camera Thumb Up Grip, Aluminium Alloy Shoe Mount Thumb Up Holder for A7 A7M2 M3 A9 A7RII A7RIII A7SII(Black)

Works only marginally well. It flexes and will mar the camera paint over time.

I've tried other models that didn't fit perfectly or scratched the top of the camera. This one fits perfectly, functions perfectly, and doesn't mess up the camera.