Keep your entire body in shape with this burst-resistant Ab Ball from Everlast. It works to trim and tighten your core muscles, abs and back, strengthen arms and tone legs. Plus, stretching on the ball is a great way to warm down after working out.
*It is recommended that everyone should get at least 30 minutes of moderate physical activity 5 days a week. Source of information: U.S. Surgeon General. . .