This is a professional wheel roller, perfect for the training of the abdominal muscles. It also strengthens your back and shoulders. It is equally suitable for men and women, beginners and experts, both for a targeted upper body workout and daily exercise. Features - Color: Black. - Material: Plastic pipe. - Size: About 30.00X16.00X9.00cm/ 11.79X6.29X3.54in . - A premium and useful AB wheel roller, perfect for the training of abdominal muscles. - Not only can it exercise your abdomen, but also promote fat burning during endurance training to support your weight loss. - This abdomen wheel will help you strengthen your stomach, back and sides. - Suitable for both men and women, beginners and experts, both for a targeted upper body workout and daily exercise. - Easy to use, simple forward and backwards motion, no complex learning to use this.