Technical Specification:

1. High-quality western leather/high-quality yellow cowhide leather imported from Brazil
2. Inner steel frame structure + outer shaped sponge integrated foaming
3. Aluminum alloy armrest + PU surface
4. Fourth gear locking chassis
5. Passed SGS certified level three electroplating air pressure rod
6. 350# electroplated square pin high pin
7. ∮55 mm silent wheel