Progress from the Essential level by linking Intermediate Matwork™ exercises with the versatile BOSU®* Balance Trainer - a demi-ball that effectively targets and conditions the core. Exercises are performed on both the flat and inflated dome side of the BOSU®* in standing, kneeling, seated, supine and prone positions. Learn how stability, balance, strength, flexibility, agility, coordination and endurance can all be enhanced with the BOSU®*.