New product released, Arca-Swiss style anti-twist plate for Canon 5d Mark II body and Grip.  Features black anodized scratch resistant surface, extra two mounts for monopod, tripods etc.  This is a CNC machined precision part in aircraft aluminum, all Made in USA and Designed in USA.

With hardware included.  This style of quick release plate will last you a lifetime, is lightweight and it doesn't feel like you have anything attached on the bottom of the camera.