Increase focus, attention and productivity. Durably built with an ergonomic design that promotes neutral positioning between the ankles and feet, the Gaiam(R) Evolve Balance Board creates low-impact instability that engages the stabilizing muscles of the back, core and lower body, which increases strength and promotes proper alignment, helping you feel more energized. Balance Low-impact movement activates back, core, leg and ankle muscles Ergonomically promotes neutral ankle-foot alignment, avoiding over-pronation Increases productivity by keeping the body active and mind focused Non-slip, honeycomb texture provides a secure base on hard floors or carpeting Additional Features 30-day warranty