Office Chair Ergonomic Desk Chair - Adjustable Height PU Leather Home Office Desk Chairs, Swivel Mesh Midback Computer Chair with Lumbar Support and Flip-up Armrests Executive Office Task Chair, Black by Chairoom

【5 Years Warranty】We provide 5 years of after-sales guarantee! If there are problems such as missing parts, product damage, or other unsatisfactory issues, please contact us in time. We will reply you within 24 hours and actively solve them. Thank you for choosing Chairoom office chair. We will be responsible for your choice 【Adjustable Office Chair】Pneumatic seat-height adjustment from 16.6"-20.5"; Rocking back and forth to have a rest by adjusting the knob beneath the seat; 1.2" adjustable lifting lumbar support, Unique Butterfly Shape bracket design for improved backrest stability 【High Security】 This office chair has heavy-duty sturdy base with five-jaw, and using class-4 gas lift, more stable and durable, all parts pass BIFMA certification maximum load capacity reaches 300lbs 【Easy to Install】This swivel mesh office chair comes with all hard wares and necessary tools. It takes may be 10~15minutes if following the manual instruction 【Super Comfort with Ergonomic Design】Ergonomic curved mid back perfectly supports your whole body very well. 6cm thick cushion with high density shaping sponge, soft and comfortable; Waterfall front seat reduces pressure and fatigue of your legs and help increase leg circulation. Padded armrests make you feel comfortable all day or flip arms up over the backrest for saving room space