Specifications: Anti-slip and wear-resistant roller designed to imitate the tire texture ensure its stable and safe operation without scratching the floor. Providing smooth resistance when rolling forwards and rebounding force backward, the automatic rebound and smart braking function allows for safe and labor-saving exercise. Multi-layer composite material ensures excellent anti-skid and wear-resisting performance, which also allows for quiet operation. Equipped with ergonomic handle, the ab wheel is easy to control, allowing you to stretch from multiple angles. Ab wheel helps build your muscle and sculpt abdomen, waist, back, shoulder, arm and core effectively. Item Name: Durable Abs Roller Wheel Material: PVC Features: Automatic Rebound, Anti-Slip, Low Noise