Adjustable Swivel Task Chair Ergonomic Office Chair with Adjustable Lumbar Support-Black

-90°flip-up armrests allow for convenient Space-saving design -Padded sponge armrests and backrest with curved design for extra support-Reliable height adjustment lever for easy height customization-Rocking tension adjustment knob and rocking function for better sitting experience-Upholstered lumbar support with height and fore/aft adjustment-Adjustable lumbar support and thickened upholstery for extra comfort -Adjustable headrest with 2.5"/6 cm adjustable height and 50° adjustable angle-Stable 5-star base and SGS certified gas lift ensure no wobbling or toppling-Smooth universal wheels glide effortlessly over various surfaces● Adjustable Headrest and Armrests: The headrest is adjustable in height and angle to provide optimal support for your head and neck. The armrests can be flipped up and the upholstered lumbar support with 2.5" lift and 1" fore or aft adjustment can keep you in the best sitting position.● Ultimate Comfort Experience: The ergonomic backrest made of breathable and