High quality material: made of high toughness engineering plastic and thickening wheel frame.
automatic rebound design: when pushed to a compact state, the abdominal roller wheel will be rebounded to reset easily and to exercise your abdominal muscles.
ergonomic 4 wheel system: with four wheels system,the roller wheel is not easy to roll over, provides more stable and safe. weight capacity: 200kg/441lb.
anti-slip design: anti-slip textured wheels with strong grip. tpe soft wheel, not to damage the floor.