Ergonomic Office Chair Height lifting and rotation，Metal legs Adjustable Armrest Tiltable chair

Color：Dark Black、Grey White Back Style：Split BackSpecial Feature：Adjustable Headrest, Adjustable Height, Back SupportMaximum Weight Recommendation：200kgSize：63cm X 145cm X 50cmSeat Depth：50CMFill Material：SpongeBase: 63cm metal baseWheels: 60mm PU nylon castorsGas lift: BIFMA passed class 3 gasliftPremium Ergonomic Design: This ergonomic office chair features an 'T-Shaped' design with 7 support points (head, neck, shoulders, back, waist, hips, and hands) for optimal sitting posture and improved comfort, helping to reduce back pain and boost work efficiency.Adjustable Comfort: 360° swivel, 15cm seat height adjustment, 45° rocking function , and flip-up armrests, ensuring a customized fit for various sitting positions and body types.Superior Cushioning: With a extra-thick padded cushion made of high-quality supportive sponge and pocket springs, the chair provides ultimate comfort akin to a sofa, allowing you to work for extended periods without discomfort. The large 48cm W x 50cm D seat cushion accommodates different sitting positions.