Fashionable Minimalist Black Plastic Mesh Chair Comfortable Office Chair

●Headrest: Fixed mesh frame headrest ●Backrest: PP glass fiber back frame, passed BIFMA back pull test 102KG ●Lumbar support: Up and down movable fishbone lumbar support ●Seat: High-rebound 7CM thick pure new density cotton+15mm thickened wood board ●Armrest: Armrest PP+GF material integrated armrest ●Chassis: 2.5 thickened cold-rolled steel stamped and formed, wire control stepless locking max angle 155 degrees ●Gas lift: Stroke 85mm sink black three-stage gas lift passed SGS certification, 150,000 times lift test ●Chair base: ∮340 black PP rubber base, passed 1136KG static pressure test ●Casters: 60MM large PU casters, 100,000 times rolling test ●Footrest: Foldable flip PP footrest ●Function: The whole chair conforms to ergonomics, all-round normal use, not easy to tip over