Great bit of kit! It's very useful for several aspects of AW, as shown in the pics, but it's bang on for wrist curls. Big numbers on a standard dumbell mean nothing, when you consider how a few kg on this will attack your fingers and open your wrist. I got mine from Nick a few months back and try to incorporate it into all my hand & wrist sessions now. I guess it could used with pulley system too.
Thanks to Stan for stepping up and putting his effort into something that is affordable and useful to most, if not all pullers.