1. Material: plastic 2. Scope of application; office, outdoor, home 3. Applicable parts: abdomen, chest muscles, back, buttocks, arms, legs 4. Four smooth axle wheels, quiet and silent 5. C-shaped fulcrum design, scientific stress, stable and not falling 6. 5mm thick non-slip foam to protect the palm from injury, non-slip and sweat absorption 7. Strong and hard to break, strong hardness, good load-bearing ability 8. Weight: about 520 grams 9. Size: about 20x10 cm
