T-THREE.Adjustable office chair, ergonomic mesh swivel seat, with lumbar support, height adjustment, 360° rotation, and tilt function, mesh backrest for home office(Black)Ergonomic design Home office desks and chairs are ergonomic and fit the natural curve of the lower back, providing back and waist protection for long sitting and keeping the spine away from body pain. Improve productivity Adjust seat height to find the ideal sitting position that matches the height of the screen. Backrest and upholstered seats allow you to work energetically and comfortably. Breathable back High density mesh back is comfortable and