The running surfaces of the rollers are rubberized Color: black / blue Dead weight: approx. 650g Dimensions: approx. 25cm long Roll diameter: approx. 18cm Optimal use of the abdominal muscles Quick and effective for a tight six-pack Exercises the upper / lower abdominal muscles, arms, shoulders and back Due to its double role, it is highly resilient Soft foam-covered handles ensure a high level of comfort during training Including knee pad made of high-quality, non-slip and abrasion-resistant foam AB Wheel belly roller including knee pad made of foam Do something for your fitness and health This high quality AB wheel belly roller is suitable for professional use in the studio and at home. The construction relieves the spine and ensures a healthy, effective and intensive training. This mobile training device is practical and light at the same time, which can be assembled in no time by simply plugging it together. Effectively trains the upper / lower abs, arms, shoulders and back. The running surfaces of the rollers are rubberized. This means that training is also possible on smooth floors. Grasp the handles of the Ab Wheels firmly with your hands and slide slowly and intensely back and forth on your knees