612-1A High back ergonomic office mesh rotating chair from foshan furniture. Three-stage backrest design, highly recognizable For those who like its style but stop at its price, specially simplified the configuration. It can be use in office area. It can be use at home office, training, computer chair, apartmen. Feature Height adjustable Nylon+glass-fibre armrest, with Pu padding, Height adjustable 55kg/m³ high density and elastic moulding foam， with PP bottom shell,∮340 Nylon base ( passed 1136KG static pressure test) 4-section lockable mechanism ( lifting , locking, tilting) XIEQIANG GAS LIFT (passed BIFMA test) 60MM black nylon or white PU castor,High quality ergonomic tension control lumbar support (automatically adjust according to people’s posture).