Ergonomic Office Desk Chair with Rocking Backrest and Height-adjustable Padded Seat-Gray

● 19"-22.5" adjustable seat height to fit people of different heights
● Pull out the lever for unlocking
● Tension adjustment knob (tight & loose) to adjust the backrest angle
● S-shaped backrest fits your body curve back support
● 90 -105 rocking function for fatigue relief
● Premium leathaire oxford fabric and soft sponge for long-lasting comfort
● Supports up to 330 lbs with 5-claw base and gas lift
● 5 rolling casters make it easy to move around
● Additional back support & handle for convenience
● Ideal for offices living rooms bedrooms and studies
● Assembly required