BOSU Sport Balance Trainer, Travel Size Allows for Easy Transportation and Storage, 50cm,

Multipurpose Workout Ball: Combines elements of cardio, strength, and flexibility into unique and highly effective workouts; Forces you to maintain your center of gravity while performing any exercise Muscle Engagement: 22-inch (56 cm) balance ball increases the difficulty of workouts and builds your strength faster by forcing the engagement of more muscles Versatile Balance Dome: Balance trainer improves your flexibility, endurance, strength, and overall ability by allowing you to perform multiple and versatile workouts Good for Rehabilitation: Not just for exercise, this workout ball can be used as equipment for rehabilitation and physical therapy with the help of its unstable surfacing Durable & Easy to Use: Includes a guided workout and easy-to-use inflation pump; Made with strong, non-slip, non-marking, durable material and can support up to 250 pounds