Mesh Drafting Chair Office Chair with Adjustable Armrests and Foot-Ring-Black

●21.5"-29.5" adjustable seat height fits people of different heights
●The armrests can be adjusted within 3.5" through the adjustment buttons
●8"-15" height-adjustable footrest ring to support your legs
●Rotate the knob to loose or lock the footrest ring
●Ergonomic S-shaped backrest and lumbar support for fatigue relief
●Dense mesh fabric for great breathability
●High density sponge for ultimate comfort
●Dirt-resistant PU leather for easy cleaning
●Strong 5-claw base for high stability
●Easy to move with 5 rolling wheels
● Assembly needed