Have no desire to go to gym every time you want to do exercise? Prefer to have a good body shape by exercising? This Ab roller is exactly what you really want. The wider wheel gives you superior stability, allowing unrestricted movement for a more intense workout. It can help build and tone your abs, arms and back and effectively work out your core at home, the gym, or in the office. Feature - Color: Black and yellow. - Material: Rubber. - Size: About 29.5 x 17 x 9.5cm/11.6 x 6.7 x 3.7inch. - Get a flat and toned tummy in no time. This premium core strengthening wheel helps build and tone your abs, arms and back. Effectively work out your core at home, the gym, or in the office. - Wider Wheel for added stability. The wider wheel gives you superior stability, allowing unrestricted movement for a more intense workout. - Comfortable grips. Ergonomically designed grips prevent discomfort in your hands, so you can give all your energy to every workout. Removable handles allow for compact storage and easy transport. - The knee pad is eqiopped with for better workout.