Very neat, they should have put a little more work on how the way the thumb works, make it truly opposible by remote action, that's it's weak point. I have a very cheap version of one of these I purchased for my son 10 years ago, it burried somewhere in the house. It used steel rods, and gave a surprisingly strong grip, to be honest, it works about just was well, and the hand was much father from the prosthetic hand. Looks like high quality, and using liquid as the medium (muscles) for moving makes for a strong grip. Neat!!