The burner is made entirely of steel, including the cast upper part. The steel thickness reaches 8 mm, the burner is very stable and durable. We use only high-quality fittings and a ball valve made in Italy. Our burners are distinguished by the fact that they work without problems both on Propane - Butane and on Natural gas (you need to let us know if you will use the burner on natural gas) Also, our burners can be used outside the forge without problems, and the flame will not go out or come off the burner even when used at full power. This is a very convenient advantage, you can heat the metal to the temperature of forge welding in any place even outside the forge. The burner has dimensions Burner Length - 13.8" (approx. 350mm) The burner nozzle diameter is 2 inch (approx.48.5mm) The cast head is 2.3 inches (approximately 58 mm) The gas control valve and air control wheel allow you to accurately dial the desired mixture of air and gas and achieve the desired temperature results. You can watch the video how the burner works and is regulated, on the YouTube hosting, on request in the search "burncraft gas burner" Please remember to always check fittings for leaks every time you turn them on, especially before the first start. Work with burners and forges literally plays with fire, so please be careful and take all necessary safety measures. This lot contains one powerful burner and comes partially assembled as you can see in the last photo. If you cannot find your country in the list to make a purchase, just write to us. We will respond very quickly. And we ship our products to anywhere in the world. Please note that delivery to the islands and remote areas is discussed separately in each case.