Ergonomic Office Chaied with 4 full-body support points (head,ba,hips,hands) and strong lumbar support to relieve prure during extended sitting. Built to strict BIFMA & SGS safety standards for reliable daily use. The adaptive -barest system naturally wraps around your spine to provide tarted lumbar support and lower ba prure relief. for long-hour executive work,ging,and home office use,reducing fatigue and keeping you fully supported all day long. fy & Breathable Mesh Ba ChairDon't let heat distract you. Spacious seat designed to fit users from 5'3" to 6'5" for versatile fort. Overall chair size: 26.7"W x 26.7"D x 45.67"-49.61"H. Seat size: 20.08"W x 18.3"D x 18.5"-22.43"H with height adjustment & Customizable Depth ran from 18.3"~19.68". Built with a reinforced metal base and Class-4 gas lift,this sturdy desk chair offers ro-solid stability. 600 lbs acity,making it ideal for Big and Tall heavy people. 4D Adjustable ArmrestsFeatures 4-dimensal adjustment for armrests,including left-right movement,forward-baward sliding,height adjustment,and rotatal angle adjustment. The lowest armrest height is 26.38 inches,allowing the chair to slide fully under your desk to save valuable space. Smooth-swivel and ergonomic design for long-hour fort. Enjoy flexible recline from 90° to 135° with 3 loing posits for working,relaxing,ging,or taking a mid-day nap. 2D Adjustable HeadrestLar mesh headrest features 2D adjustable height and depth,ly conforming to the natural curves of your head and ne. Designed for users ranging from 160cm to 195cm in height,it easily adapts to different body types and provides l support while working,ging or relaxing. For users under 5'3",the headrest can be removed,allowing you to still enjoy the superior fort of the Jacia office chair. Stable,Durable & SilentJacia office chair features a heavy-duty 5-star base for exceptal stability & long-lasting durability. Height adjustable barest Lumbar support system,It effectively s ba fatigue during extended work-from-home ss or intense ging marats. Smooth and silent rolling wheels fit for home,office,sdudios,& conferences room. Crafted with premium materials & Easy Assembly,delivers exceptal value and a satisfying seating experience..