beisol

According to the principle of ergonomics, Beyi Shu adopts the Adjustable double-blade elastic design, which can be shaped with the change of sitting posture, and dynamically and accurately provide support for the Waist and back, so that the spine can maintain normal physiological curvature, offset the shear force caused by improper sitting posture on the spine, so as to relieve muscle tension and relieve back pain.