... , soft seat 1.COVER:High quality PU leather office chairs,comfortable and durable2.FOAM: High density sponge,durable shape, soft ... seat3.ARMREST:High quality steel and PU,fastness and comfort4. BASE:High quality aluminum,strong and fashionable design5. GASLIFT:High ... quality chrome,agile lift and no-malfunction6. Tilt tension adjustable and lockable,seat height adjustable7. SIZE:standard ...