Multi-level adjustment sheet for more range. Equipped with 88 massage projections, your body corresponds with acupuncture points, massages your lumbar spine while stretching. You can use it while sitting, help you correct your sitting posture and massage your lumbar spine. Helps relieve chronic back pain, correct postural imbalances, restore the natural curvature of the back. Improves flexibility in shoulder and back muscles. Made of high-quality ABS plastic, environmentally friendly, robust and unbreakable, pressure-resistant, compact and portable, the design can be easily stowed in luggage. With soft rubber mat in the middle, cushioning impact force, give your waist better protection. Three different levels can be set, gives you better treatment. Product description Do you have any of the following problems? Sedentary long-term office work leads to waist distortions. The air-conditioned room is cold and cold in winter. When you have a problem with lumbar discomfort, it is easy to feel tired. Maybe you can try this product Preventing spine deformation, flexion, disease symptoms Relieves back muscle pain, back pain Corrected Kyphosis, Spine Deformity Relax fatigue and stress and improve sleep Makes the user's body more flexible and stretches better This back massager is made of very sturdy ABS plastic and equipped with various settings to fully stretch and relieve back pain. It's designed to make your back stretch easy, safe, affordable, and enjoyable. Adjustable, there are 3 different levels. Just choose the one that suits you best, put it on the floor, in bed, or even put it on a chair. Designed for people of all ages. It is used to relieve chronic back pain, correct posture imbalance, restore the natural curvature of the back, and improve the flexibility of the shoulder and back muscles. Just use it for 5 minutes twice a day for best results. [Specifications] Name: Lumbar Spine Massager Material: ABS plastic + rubber Heights of three levels: 70 mm, 90 mm, 110 mm Base length: 385 mm Maximum acceptable weight: 250,000 g Package size: 400 * 250 * 30mm / 15.75 * 9.84 * 1.18in Packaging weight: 550 g Package list: 1 * pedestal + 1 * arched board + 1 * waist support [Relieves back pain and corrects posture] Daily activities with prolonged computer use, sitting all day, or physical activity can lead to imbalances in the spine and posture. The rear stretcher and the lumbar support are designed to help correct and improve posture.