These charger plates are a great addition to your table settings. For use, simply place them under your dinner plates at receptions, banquets, or other formal events. They pair well with our placemats for an even more stylish look. When it comes to cleaning, it's very easy. Just rinse them under hot water. But remember, these plates are not microwave or dishwasher friendly, so avoid using them in these appliances. They are made of hard plastic, are BPA - free, reusable, non - toxic, durable, and sturdy, so you can enjoy using them for a long time.