Beehive Deep Brood 6 1/4″ Frame Assembled with 5 5/8″ Beeswax coated foundation. Grove Top & Grove bottom, 1/2″ thick bottom. Frame is select grade, stapled and glued. Foundations is food grade plastic that is very durable. Easy acceptance in the hive. USA Made plastic and beeswax coating. Textured cell pattern on the foundation. Use with 6 7/8″ Medium Honey Supers. No Assembly required.