Hemlock round stick Sauna backrestThis backrest is mainly for the sauna room special backrest, but it can also be used on the sofa. Backrest can better allow the human body to maintain a more correct sitting posture, the human body in normal life need to naturally bend or sit straight waist, both of which will make the muscles and ligaments around the lumbar spine tension, sedentary easy to lead to soft tissue tension around the lumbar spine. The elasticity and endurance of the muscles and ligaments of the lower back are poor, and there are varying degrees of degradation or damage. If you sit on a sofa that is too soft for a long time, it will make the hips and waist sink into it. Sitting for a long time will make the waist sore and the legs numb. It’s best to lean against a hard back. The design shape of the backrest is just composite of the physiological bending of the human body, while enjoying the sauna room, it can also better maintain a healthy posture and sitting posture, and the hollow grid design of the backre