L size [Fourth Generation Back Support Wide Waist Belt + Thermal Pad] After years of research and incorporating customer feedback, a new medical-certified back support product has finally arrived. This product features an improved wide waist belt + thermal pad to alleviate lower back discomfort. The thermal pad is known as a hot pack in hospitals and warms the body to relieve discomfort. Thermotherapy is used to improve pain, among other purposes. Using the waist belt eliminates the need for frequent trips to the hospital, allowing you to apply it yourself at home and save money. [Overwhelming Support & 24cm Wide Design] The key points for reducing lower back pain are "ability to tighten firmly," "support after wearing," and "ease of putting on and taking off." [Strong Velcro & Wide Design Based on Human Anatomy] Two durable, wide belts on the outside and inside are strongly secured with Velcro. You can tighten them at your preferred position, and the support belt allows you to adjust the tightness, ensuring a secure fit. It stays in place comfortably for long periods, naturally maintaining the correct posture. ◆How to Use the Waist Belt and Thermal Pad◆ 1. Heat the thermal pad in the microwave. 2. Place the heated thermal pad in the mesh pocket. 3. Apply the support to your lower back. Place the center of the back support part in the center of your spine. 4. Cover the lower back with the support body and fasten the Velcro on the front of your body. At this time, pull the side parts of the support body sufficiently to stretch them, and fasten the Velcro on the front of your body. When wearing, use the position of your navel in the wearing diagram as a guide. 5. Attach the waist reinforcement belt to the support body. Hold the reinforcement belt with both hands, pull it moderately at the same time from left and right, and fasten it with Velcro on the front. There are three main effects obtained by using a back pain corset. ● By using the corset to increase abdominal pressure and support the lower back instead of the muscles around the lower back, the burden on the painful muscles is reduced, alleviating lower back pain. ● By fixing the excessive arching of the lower back, which is one of the causes of lower back pain, with the corset, the original correct posture is maintained, reducing the burden on the lower back. ● By correctly fixing the lumbar vertebrae, the range of motion is restricted. By restricting unnatural postures and movements, the worsening of lower back pain is prevented.