BOSU® Crush It is for you, your clients and your athletes, and it will test your strength, weaknesses and your limits! Compete against yourself and rate your athletic skill in the areas of balance, agility, core, cardio and strength. After each measurable challenge, learn drills to improve your athletic ability in that area of fitness. Learn how the challenges and drills can be integrated into goal specific workouts for all fitness levels. Are you ready to take your fitness to the next level?