3 Years Manufacturer's Professional and Hassle-Free Warranty. 1) Ergonomic Design S-Shaped backrest to improve posture, promote healthy sitting, increased productivity and reduced discomfort during long work hours. 2) Premium Quality Material Made of Premium Leatherette to circulate air and reduce heat buildup to keep you cool and the Moulded Foam Seat provides optimal support to your thighs. 3) Adjustability The Chair features fixed Armrest to help release the pressure off your shoulder and arms. 4) Butterfly Mechanism Allows you to tilt the backrest till 120º or lock at 90º to sit straight. 360 Swivel Smooth 60mm PU Wheels to move around effortlessly. Height Adjustable Lift the lever to adjust the height. Rocking Pressure Adjustor Rotate the knob to adjust flexibility of rocking. 5) Durability & Strong Base The Durable Frame and Heavy Duty Metal Base provide a sturdy foundation and ensure stability.