These charger plates are great for formal events. To use, simply place them under your dinner plates. Remember, the sale only includes the charger plates, no other decorative items. For washing, don't use a dishwasher or microwave. Instead, wash them under hot rinsing water. Before first use, hand - wash each plate in warm soapy water, rinse well, and dry with a lint - free cloth. For a better finish, clean with a 50/50 vinegar and water solution, let it sit for a few hours, then rinse and dry. Since they are produced overseas in large quantities, clean them to remove dust before use.