Product details:

Breathable Mesh Back The ergonomic mesh office chair has a durable and breathable mesh back, allows air to circulate to keep you cool while leaning. Suitable Ergonomic Armrest Ergonomic armrests of office chair: you can put your hands on top to relax after work. Comfortable Seat Office chairs with thickly padded seats provide extra comfort for daily use. Tension Control The Office chair Explosion-proof tray with the handle wheel, you can adjustable the seat of the desk chair, gives you comfort and safety. Commercial Class-3 Gas Lift, Computer chair with standard Classic-3 gas lift, pass the SGS, BIFMA, more safety! Solid & Stable The office chair has a Heavy-duty metal base, great stability, and mobility. The Office chair's maximum capacity is up to 250 lbs, and the base has 2500lbs. 360 Degree Swivel & Casters The office chair has swivels of 360 degrees for multi-tasking convenience, and its durable casters allow for smooth-rolling mobility from one area of the office to another, sliding reach up to 100000 times. Easy To Install to install Follow the instruction, please do not tighten the screw until all screw lined up with the hole. In the meantime, try to tight loosely initially in screws a little bit more, but not over-tight all the screws that will make other screws hard to tight. Finally, tight the screws firmly.