The ergonomic backrest provides appropriate support for your neck, back and waist.It has good elasticity and plasticity.It is not easy to deform and can better reduce the fatigue caused by prolonged sitting.Suitable for offices and desks。It offers excellent back and lumbar support by redistributing weight away from the spine and hips. Both the backrest and cushion are contoured to support the natural curvature of the spine, good for sitting long hours