Multi purpose compact fitness abdomen wheel set, safe food grade PP material, safe, non toxic, and odorless. Simple design, beautiful appearance, ergonomic design, and has a good effect on various parts of the body such as the abdomen, waist, buttocks and arms. Multi functional combination function, you can combine different fitness equipment according to your needs, such as: abdominal wheel, push-up support, dumbbell, steel ball massager and so on.