Using these belts is super easy. Just wrap the belt around your waist and fasten the multi - rhinestone buckle. They're great for adding a touch of glamour to your outfits. When it comes to maintenance, keep them away from sharp objects to avoid scratches on the PVC material. Store them in a cool, dry place. Remember, due to the chemicals they contain as mentioned in the warning, don't let them come into contact with your skin for long periods. If you have any questions or concerns, refer to the California Proposition 65 information on www.P65Warnings.ca.gov.