Japanese Hibachi Grill Cast Iron Outdoor Charcoal Cooking Light Portable Charcoal BBQ. 157 Square inch cooking surface. 3 position adjustable cooking grids. Wood handles for protected moving of grill and grids 2 adjustable air vents for controlling charcoal burn rates. This product was designed for charcoal only. Vent windows are to control the charcoal burn. Cast Iron is formed by making a mold in wet sand with liquid iron is poured into the mold. The sand mold is why the surface is not perfectly smooth. Curved up grill sides help keep food in place 3 position adjustable cooking grids Wood grid handles allow for protected adjustment 2 adjustable air vents for controlling charcoal burn rates Cast iron 10" X 18"