BOSU® products offer intensely simple performance, and are known industry-wide for training balance, building strength, fine tuning skills for sport, enhancing flexibility, and delivering killer cardio workouts. The BOSU® Balance Trainer, BOSU® Ballast® Ball and BOSU® POWERSTAX challenge the entire body with integrated, multi-joint movement that requires muscle groups to work together. Proudly made in the USA. bosu.com