I was curious about this device when I first saw it. It has all the elements I like and looks like a surreal ready-made artwork. I was suspect of the addition of the hand to the device so I asked about it. Apparently this belonged to a person with prosthetics. I can only guess its use — the hand is posable to various configurations—from the flat hand to the kung-fu grip. The machine works great too—full range of vibrational setting to full blast.