Do you love working out and rather than endless sit-ups, would like a super convenient way of performing back, stomach and core strengthening exercises?Would you like a super durable exercise ball with an ultra safe, high grip surface?If so, our Exercise Balls are the perfect choice! With an extra large diameter, our Exercise Balls are perfect for home workouts with a tough, rubberized surface allowing you to perform a range of balance and stability exercises to strengthen your abdominal muscles, perfect for use with yoga, pilates or for general strength and balance training!