This makes for better heat retention and more even heat distribution. The Extra heavy lid is made to handle more burning coal for a "pressure cooker effect" to your cooking. The 3 legs on the pots offer stability when cooking or resting on uneven surfaces.
These pots are poured from sand molds so they are not as smooth as your typical cast iron cookery. Heavy duty, well made, these pots can be passed down from generation to generation. A must have for any collector!