... in an S-shape motion. THE WAVE is built with high quality components. The platforms are made of a ... a look at the picture, than to try to describe it with words. The board rides on two wheels, each on a ... below a foot pad, and the pads are linked with a pivot that turns, rather than hinging like a ... , weaving and turning, so until you get used to it, it can burn out your feet and legs. However, on ...