Uh, I believe they call this one "Spinervals for the Lame and Halt", aka Spinervals 1.0, the fitness series. You guys had me so scared of Coach Troy that I got the absolute easiest one they had just to make sure I didn't start with one that would be awful. So...I'll be working my way up. Sure hope there's a brisk trade in secondhand Spinervals out there. They ain't cheap. But it sure was fun.