This is the FitGLIDE by Bob & Brad: a compact exercise tool that you can take anywhere to get your feet moving. It is designed for those who are recovering from a serious injury or stroke. This knee exerciser is pretty easy to use: simply put your feet on the plates and move back and forth along the track.
FitGLIDE supports flat, incline and decline slides. It weighs less than 5 pounds, so you can easily take it with you anywhere. It measures 21.5 x 14.5 x 5 inches.