These metal chain belts are very easy to use. Just wrap them around your waist and fasten them. When wearing, make sure the belt is not too tight to avoid discomfort. Also, keep in mind the California Proposition 65 warning about the chemicals in the product. For maintenance, store the belts in a dry place to prevent rusting. Avoid contact with sharp objects to prevent scratches. If they get dirty, you can gently wipe them with a soft cloth.