A family friend of mine flagged the following videos for me a couple days ago. Imagine. A weight training program that requires repetitive, rapid wrist motion. IMAGINE!
Get real! Dynamic Inertia. 6 minutes a day. Ringing a bell anyone?
I'm just going to hazard a guess. You may or may not be able to get the same results at home and save yourself $19.95 before shipping and handling.