"The low-rise stepper sits surreptitiously under your desk – just set your feet on the pads, and gently step-step-step. If you can keep up a steady motion, your keyboard and mouse work fine. The moment you stop, however, they stop responding."
LOL
I thought it was a joke while I was reading the description. Then I looked on the right and saw that you could actually buy it :|
Price: $199.99