The Wilton Professional Lower Back Stretcher and Massager with Heat function has been specially designed for people with prolonged working, studying, sitting, and standing hours. It relieves fatigue and pressure for your lower back and allows you to choose different modes as per your requirements. The ergonomic curved design matches the human body curve. The physiological curvature of 26° with cyclic air traction system helps to stretch the lumbar spine and tight muscles. Features: - Intelligent Dynamic Traction: Inflate manually to help achieve the desired stretch or rotate it through two automatic settings. The body works with the cyclic air traction system to stretch the lumbar spine and tight muscles. - Intelligent Vibration function: The vibration system can quickly relieve lower back pain. Two Sides Sub-Plate: Equipped with sub-plate, it can be used on soft or hard surfaces as well as suitable for different conditions.