Helps enhance the effectiveness of the exercise by increasing the intensity of the exercise, which contributes to stimulating the abdominal muscles stronger and more effectively. - The wheel is characterized by exceptional flexibility and high durability, allowing you to use it regularly without worrying about rapid wear or damage. - The resistance springs provide additional support to help perform the exercise efficiently, reducing stress on the joints and improving balance during exercise. - The comfortable knee mat ensures complete comfort during exercise, and protects the joints from stress or injury during intense exercise.