①Back frame+headrest: high -quality engineering material PP+fiber (black frame & white box)
②Fabric: High -quality office chair special mesh cloth
③Siter: sitting frame+setting cotton
④Hands: fixed handrail
⑤Chassis: integrated mold lift chassis
⑥Qi rod: S3 level 100/6 air pressure rod
⑦Tripod: 330 PP foot
⑧Wheel: Wheel 50pu black wheel