Using these stretch belts is easy. Just wrap the belt around your waist and fasten the big metal buckle. When it comes to maintenance, keep them away from sharp objects to avoid damage. Also, try to store them in a cool and dry place. Remember, because of the chemicals in the product, don't let it come into direct contact with your skin for long periods. If you have any concerns about the chemicals, check out the information on www.P65Warnings.ca.gov.