A. Place of origin: Mainland China B. Efficacy: Bone care C. Product type: Protective gear D. Model: Lumbar support belt E. Quantity: Single piece F. Material: Composite material G. Applicable part: Back H. Features: 1. Relieve lower back pain: This back support contains 4 memory aluminum strips, which are about four times as hard as commonly used PP strips. It also comes with 2 steel springs on both sides of the waist, providing relatively stronger 360 - degree vertical support for the lower back, helping to prevent excessive muscle swaying and reduce intervertebral disc pressure. 2. Can be worn inside: This back support belt is made of 4 - way stretch fabric using 3D weaving technology. Through different compression levels, it can fit the body, is breathable and comfortable. The inner layer is made of velvet fabric, bringing a silky touch similar to a baby's skin, which is quite suitable for wearing inside. 3. Prevent back injuries: The back support belt is equipped with 2 elastic straps, aiming to provide additional pressure on the lower back and help prevent back injuries caused by weightlifting, long - term standing or sitting, housework, work, etc. Wearing this belt may relieve lower back muscle pain, herniated discs, sciatica, scoliosis and other problems. 4. Thoughtful detailed design: There are 2 silicone anti - slip strips on both sides of the waist to help prevent the lumbar support belt from rolling up when sitting, bending or doing other activities. The 2 elastic straps use widened Velcro, with relatively strong adhesion. They are made of PVC material commonly used in baby clothing, not likely to scratch the skin or damage clothes. 5. Durable: The lumbar support belt uses double - stitching technology, with strict quality control and seems to be relatively durable. I. Size: Measure the waist circumference at the level of the navel. 1. Size S: Suitable for waist circumference 60 - 75 cm/23.6 - 29.5 inches. 2. Size M: Suitable for waist circumference 75 - 85 cm/29.5 - 37.4 inches. 3. Size L: Suitable for waist circumference 95 - 115 cm/37.4 - 45.3 inches. 4. Size XL: Suitable for waist circumference 115 - 125 cm/45.3 - 55.1 inches. 5. Size XXL: Suitable for waist circumference 125 - 140 cm/55.1 - 66.9 inches.