Specification: Material: Spontaneous Heat Cloth, Magnet, Elastic Strap Color: Black Package Weight: approx. 105-115g Quantity: 1pc Fit People: Lumspondylosis, stomach trouble, reduce lumproud flesh, mental and manual workers who long standing or sitting, dysmenorrhea, limbs cold, stomach cold Size Options Apply to Wasit S 60-76cm / 23.62-29.92 M 77-86cm / 30.31-33.85 L 87-96cm / 34.25-37.79 XL 97-108cm / 38.18-42.51 Package list: 1 * Back Waist Support Note: 1. First, use a clean wet towel to wipe the middle heating section of the waist support, and then fixed the waist support on the skin . In order to ensure safety, so the heat is relatively slow, generally about 40 minutes to the obvious heat, according to each person's physical condition, decided to wear the length of time. If after use, the skin has a hot feeling, is normal, please take off temporarily. Never damage the skin. Do not wet the waist support can also be used, but the preheating time is longer. 2. High fever, bleeding tendency, temperature sensory disturbances and damage skin are disabled. Acute tissue injury, please use after 24 hours. Patients with cardiac pacemakers are disabled. Individual allergies, please use under the guidance of a doctor. Such as local redness, scorching hot is a normal appearance. After the product is removed, the disappears naturally. Do not immerse in water bubble wash, gently wipe with water do not use detergent, bleach washing. Pregnant women and children are forbidden to use. If you are unwell in the use, please stop using or under the guidance of use.Health magnets, improve circulation, analgesic, swelling, and promote the role of and lymph circulation. Has an anti-inflammatory and repercussive function, useful in eg pain. Enhance metabolism and strengthen immunity. Promote and improve local and systemic. Activation of the biological macromolecules of activity, so as to play the biological macromolecules to regulate the body's immune function and other activities, is conducive to the recovery of the body function and balance, to prevent disease and treatm.