Ergonomic design chair--more efficiently and comfortably, multi-function meet all kinds of body shape. Good news that those who have been trapped in chairs for a long time Does your job require you to maintain eight hours or more per day Does your day involve too many sitting postures during your studies Do you know that sitting too much may be worse than smoking Maybe, yes, otherwise you will not look for a quality office chair with support! specification Name: office chair Tray: thickened explosion-proof tray Fabric: artificial leather Handrail: fixed armrest Pneumatic rod: SGS certified pneumatic rod Five claws: nylon five-star foot Casters: soft PU mute anti-skid wheel Product Size see above picture for reference Weight: 18 kg Weight Capacity: 150 kg Height Adjustable: 110-120cm Packing list: 1 x Office Chairs 1 x Installation manual NOTE: 1. Manual measurement of all sizes, there is a 1-3cm error is normal. 2. The actual color of the product may differ slightly from the displayed image due to differences in the display screen or light reflection during shooting. 3. If you have any questions, please feel free to contact us, we promise to get back to you as soon as possible, and give you a satisfactory solution.