Product Type Fire pit table Burning Area Material Stainless Steel Fuel Type Propane; Natural gas (Natural gas conversion kit is NOT included with fire pit due to regulation reasons. Customers need to buy it separately for conversion.) Color (Black Finish) Black Compatible Filler Type Lava Rocks BTU Output 50000 BTU Ignition Type Push-button Exterior Material Steel Fire Bowl: 4'' X 23.2'' W X 7.48'' D Note: Natural gas conversion kit is NOT included with fire pit due to regulation reasons. Customers need to buy it separately for conversion.