Feature: 1. Automatic Rebound Design: Our 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!2. Elbow Support Rebound Abdominal Wheel: Two-in-One Exercise.Upgrade your ab workouts with our Automatic Rebound Ab Wheel that effectively trains your abs and core muscles.3. Silence And Noise Prevention: Our roller wheel is made with multiple layers of material, including an Anti-Slip layer, Sound-absorbing layer, Reinforcing layer, thickened layer, damping layer, and Supporting layers are combined to make the pulley soft and silent, reduce vibration and noise, and exercise more comfortable.4. Comfortable Foam Grip And Thick Elbow Pads: The detachable handle has thick foam for a comfortable grip, sweat absorption, and easy storage.Thickened foam cushion design protects the elbow, which does not damage the elbow while exercising for a long time.5. Grow Six Packs Faster & More Effectively: As one of the abs roller wheel core exercise equipment, the automatic rebound abdominal wheel helps tone and shape your arms, chest, abs, back, hips, and legs muscles. The amazing ab roller kit helps men and women burn fat faster and shape your 6-pack abs! 6. Portable and Durable: Our ab roller wheel is compact and lightweight, making it easy to carry and perfect for home, gym, or office use. The durable and wear-resistant rubber treads ensure long-lasting use. Specification: Main Material: ABS+ rubberType: Double-Wheeled Package included:1x AB Wheel1x Kneeling Pad