Ergonomic Office Chair Type A Black, Adjustable Back Mesh Desk Chair with Lumbar Support and Armrests

Office Chair Type A Black A back office chair designed for daily use in home, dormitory, and office settings. Combines breathable mesh and a sturdy aluminum alloy frame for stable support, adjustable comfort, and quiet movement across different floor types. Key benefits Ergonomic lumbar support: Selfadaptive suction pressure lumbar pillow supports the waist, helps distribute local pressure, and improves sitting comfort during long periods of use. Fully adjustable fit: Heightadjustable seat with smooth lift mechanism and 360 degree swivel adapts to different desk heights and user needs. arm support: Armrests can be raised or lowered and adjusted in angle to support the elbows and reduce arm suspension while working. Practical and spacefriendly: Simple assembly and detachable parts make the chair easy to set up, disassemble, and store when not in use. Floorfriendly and quiet: Smooth casters and protective design reduce noise and prevent scratches on most floor surfaces. Materials and finish Frame and base: aluminum alloy for strength and stability. Seat and back: Breathable mesh for airflow and lasting comfort. Colors available: White, gray, black. This listing is Type A Black. Features summary back chair shape for upper back and shoulder coverage. Selfadaptive suction pressure lumbar pillow for targeted support. Adjustable armrests with angle adjustment. Gas lift height adjustment and 360 degree rotation. Easy assembly and detachable components for storage. Designed to minimize floor noise and scratching. Suitable for Home office: Remote work and prolonged desk tasks. Study and dormitory: Students who need an adjustable, spacesaving chair for studying. Office and meeting rooms: Desk work, conference seating, or flexible shared spaces. Gaming and creative studios: Long sessions that require adjustable support and freedom of movement. Additional notes Applicable people: family, dormitory, office. Measurement tolerance: product dimensions may vary by 1 to 3 cm due to manual measurement. Color variations: product photos are taken from actual items; slight color differences may occur because of lighting and monitor displays. Package includes assembly instructions and all parts for onsite assembly.