Challenge your entire body with integrated, multi-joint movements by incorporating the Bosu Multi-Functional Strength Trainer Ball into your workout routine. The ever-changing moving surfaces force the engagement of important core muscles to keep yourself stable, which helps strengthen the body and improves your overall balance. Use the dome or platform side down, combine the Bosu ball with other equipment, or use the ball as a stand-alone product to make any exercise fun. The versatility and unstable surfaces encourage injury presentation and rehabilitation by performing strength and conditioning movements. Yoga poses can also be done with this balance trainer to increase difficulty or improve flexibility. Designed with a 26-inch diameter ball, this durable piece of fitness equipment is made with strong, burst-resistant materials.