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