✅ NEW ergonomic office chair with lumbar support and posture corrector. Relax your muscles to concentrate on working tasks! ✅ PATENTED ergonomic shape of posture corrector and lower back support carefully repeats the anatomical contours of your spine and make your sitting comfortable. ✅ ADJUST your ergonomic desk chair: headrest, 3D armrest, seat height, back height, back lumbar support, backrest tilt and tilt tension.