The Teamson Home rectangle concrete gas heater with lava rocks is a must for entertaining in your patio garden area and is sure to provide you and all of your guests with warmth in an outdoors space.The concrete rectangle gas firepit is durable for the outdoors. The gas firepit is easy to use with any propane gas bottle source. You don't have to worry about building a fire at an instant once its hooked up to the gas bottle. This outdoor gas burning fire pit comes with lava rocks and easy ignition for quickness. It also comes with the glass wind screen to help with flame control and safety element. Adjustable flames are the perfect addition to light up the garden.