Material: Neoprene, elastic fabric, pp bars, adjustable straps Size: S 100cm suits waist 50-90cm M 100cm suits waist 70-95cm L 105cm suits waist 80-100cm XL 110cm suits waist 90-106cm ( there is 2-3cm error by hand measurements.) Usage: 1, When prostration, put the on the waist, stick to the magic stick close to the waist, adjust the straps on both sides to comfortable position. 2, Stand straightly as far as possible, put the after the waist, stick to the magic stick close to the waist, adjust the straps on both sides to comfortable position. 3, When fixing, be sure to ensure that are firm. 4. Please adjust the using time according to patient's symptoms. The waist support possesses the high quality fabric with good elasticity. the waist shape is in line with the body's natural curvature with the metal strips, and the elastic band strengthens the fixed curve close to the body. This product can alleviate fatigue, reduce lower back pain, cure lumbar disc protrusion, lumbar muscle strain. It can avoid damaging the waist due to severe movement. for low back pain patients with a variety of groups, the crowd has long been engaged in manual work , sports fitness groups. It's the best product to avoid being wounded and being welcomed very much by the customers.1. High-elastic and permeability good. 3. Relief back pain and steed up recovery. 4. It can relieve back pain and steed up lumbaginous recovery. Help restore and balance the function of the waist, to disease prevention, medical treatment purpose. 2. 4 pieces medical orthopedic PP strips inside. it can enhance support, perfect to support, slim, shape. ?service?Our products are strictly checked before shipment,We are committed to higher satisfaction. If you have any questions about our product, please contact our customer service team.