That's what this chair was missing. That electro device you have on your balls is just what anyone that sits in that chair should be subject to as well . Restraint electro play is the best if you hae a nice or not so nice femdom to torture you while in the chair !!!! I cant waite until I finish biulding the one I'm going to make . As a matter of fact I think I will go build it right now !!! Back in a while.