CAP Barbell 6 Tier Medicine Ball Set Item may ship in more than one box and may arrive separately Exercise several muscle groups at once, and develop core strength more effectively Unique textured gripping surface for better control during use. Perfect for family workouts Improve your balance, coordination, flexibility, and endurance The two tone colors with silver accents will add personality to any workout area Set includes two, four, six, eight, ten & twelve Lb medicine balls plus the rack Heavy duty weighted ball that bounces