Delivering the therapeutic benefits of exercise platforms costing as much as ten times more, this 16" ROCK Ankle Exercise Board provides active and reactive rehabilitation for the lower kinetic chain. Use the ROCK to improve proprioception and balance, increase range-of-motion, and strengthen the lower kinetic chain. The ROCK is appropriate for use in therapy as well as active training. When used at home, the affordable ROCK Ankle Exercise Board is excellent as part of an ongoing conditioning program.