Automatic Rebound Design: this widened two-wheel design makes the movement more stable while reducing the swing of the ab wheel. Built-in Powerful Spring, the automatic rebound function also helps protect you from injuries during exercise. Perfect for beginners!
•Elbow Support Rebound Abdominal Wheel: Two-in-One Exercise.Upgrade your ab workouts with this Automatic Rebound Ab Wheel that effectively trains your abs and core muscles.