To use these pumps, simply slip your feet in and you're ready to go. They're suitable for both formal and semi - formal events. When it comes to maintenance, use a soft cloth to clean the black patent surface regularly. Avoid getting them wet as much as possible. If they do get wet, dry them gently with a soft towel. Make sure to store them in a cool, dry place when not in use. And always check the heel for any signs of wear and tear after frequent use.