The X Board introduces a whole other dimension to the mix. This board articulates from side to side and also from front to back, making a much more wobbly surface that will engage a lot of the muscles and tendons from your feet all the way up to your ears. In addition to the four point range of this board, it also swivels, meaning it can rotate like a merry go round. This is super fun and also uses a lot of the core muscles in your sides and tummy.
