Our plastic foundation is molded here in the U.S. from food grade plastic and coated with beeswax. They are ready to use, just put into your frames. Wax moth damage? No problem! Simply scrape the damage off and put them back on for the bees to clean up. Pull them from the box and put them right into your frames and onto your bees. 5 1/2"White plastic foundation for 6 1/4" frames. (Sold individually).