FRAME: Nylon frame Nylon leg metal leg the same price.
BACK: HUAYU mesh
ARMREST: PP glassfibre
SEAT: 42kg/m³ high density and elastic sponge
BASE: ∮320 Nylon / Metal base ( passed the BIFMA test )
MECHANISM: 2.5mm wall thickness butterfly mechanism
GAS LIFT: XIEQIANG GAS LIFT (passed BIFMA test)
CASTOR: 50MM Nylon castor