The lengthened S-shaped curved rail can be adjusted at 135 °, and can be reclined or reclined at will. The angle can be freely selected and tilted back for locking The bionic curve chair back is designed to imitate the curvature of the spine, fit the cervical spine, disperse the back pressure and relieve fatigue Waist pillow radian is more suitable for the waist curve of human body, and it is not easy to be tired after sitting for a long time Adaptive waist pillow design can effectively support the waist, disperse local pressure and take care of your Lumbar health