This is a replacement set of Kamado adapters. It is the same set that is included in Flame Boss Kamado kits and the Kamado Blower Assembly.
The set of kamado adapter plates include the following sizes:
Large: 3-1/2″ Wide x 3″ High
Medium: 3-1/8″ Wide x 2-3/4″ High
Small: 2-1/8″ Wide x 1-5/8″ High