1. Material: ABS, aluminum alloy, foam 2. Automatic rebound, built-in braking system 3. When the abdominal wheel is pushed to a tight state, it will rebound, effectively preventing sports injuries and muscle strains 4. Widen the tires, reduce the pressure, prevent slipping and do not damage the floor 5. Triangular structure, stable and safe 6. Foam soft handle, safe and comfortable 7. Weight: 1.86kg 8. Dimensions: Handle total length 370mm, total height 160mm, wheelbase 140mm
