This is a relatively simple piece of grip gear that is extremely helpful in the right situation. We especially like it for adding a baby pin anywhere you have a grip head.

You can also nail it into place, or nail a piece of lumber to it if you need to mount a wooden beam somewhere on set.

It has a v-shape for easy centering, a T-slot for security, three 3/8" accessory holes, 2 safety carabiner holes, and 6 nail/screw holes.