The rolling surfaces of the rollers are rubber coated. Color: black / blue. Deadlift: approx. 650 g. Dimensions: approx. 25 cm long. Roller diameter: approx. 18 cm. Optimal use of the abdominal muscles. Quick and effective for a tight six-pack! Trains your upper / lower abdominal muscles, arms, shoulders and back. Due to its dual function, it is very resistant. The soft foam-covered handles ensure a high level of comfort during training. Includes high-quality, non-slip and abrasion-resistant foam knee pads. AB Wheel belly roller includes foam knee pads. Do something for your fitness and health! This high-quality abdominal roller is suitable for professional use in the studio and at home. The construction relieves the spine and ensures a healthy, effective and intensive workout. This mobile training device is handy and lightweight and can be set up in no time at all by simply plugging it in. Effectively trains your upper / lower abdominal muscles, arms, shoulders and back. The rolling surfaces of the rollers are rubber coated. This means training is also possible on smooth floors. Firmly grasp the Ab Wheels' handles with your hands and slowly and vigorously roll them back and forth on your knees.