The diameter is 25mm x 25mm, and the material used is aluminum alloy.
This 3rd version: 1. One short screw meets your need and help you to protect your equipement. 2. There comes with two secure bending bevels on the one end to prevent accessory accidental removal instead of a small screw on the cold shoe.
Secure tightly via the two M2.5 screws, and a 1/4" thread hole for you to attache to camera cage, plate, handles, or other accessories.
Standard shoe mount Compatible: allow you to attache Micorphone, Flash, LED, Handle, etc. Fit for all the accessories with 1/4"-20 threaded holes.
We specially offer two white arrows on the surface to show the mounting ways for your convenience.