Feature: 1. Made of high‑quality eco‑friendly plastic, stable, sponge handle, non‑slip, sweat‑absorbent, comfortable and safe, automatic rebound. 2. Removable handle, easy to remove or install, not easy to slip. More convenient to carry. 3. The automatic rebound technology is designed to be easy to glide, reducing wheel swing and helping you control exercise. 4. Compact size, easy to carry, easy to use at home or carry you to the gym or exercise anywhere. 5. The double spring strong rebound design is used to enhance the strength and clarity of your abdominal muscles, back, arms, chest and shoulder muscles. 6. Helps you strengthen your abdominal muscles, strengthen your muscles and improve your overall endurance. Specification: Condition: Brand New Item Type: Springback Wheels Roller Material: eco-friendly plastic + rubber Color: blue Product Size: Approx. 35x9.5x15cm/13.8x3.7x5.9in Weight: Approx. 1422g Bearing range: about 100KG ~ 500KG Product features: Double spring strong rebound design makes the movement have a certain flexibility; the structure is more precise and easier to carry.. Package List: 1 x Springback Wheels Roller1 x Mat