Dual-function roller BB 704 It allows you to tone the abdominal, back, leg, chest, and arm muscles. This dual-purpose roller is also perfect for stretching exercises. It's made of durable plastic, and the wheels are coated with non-slip material. Product description: it is made of durable plastics, the wheels are covered with anti-slip material handles made of PVC material, mounted on a wheel made of durable TPR material two ways of mounting the handles enable varied training Application: It's a very simple device that takes up little space. Its ease of use makes it popular and widely used in both gyms and homes. It is primarily used to strengthen the abdominal muscles, but when exercising with this device the entire body is strengthened Comments: product intended for home use the product is covered by a 24-MONTH warranty