【PRODUCT APPLICATION RANGE】: laboratory, medicine, dentistry, handicraft, hardware and other heating and disinfection. 【PORTABLE】Compared with the traditional liquefied gas, the Bunsen burner does not need to be connected to the gas hose and the liquefied gas bottle, ​and can be used anytime and anywhere, and is very portable. 【ADJUSTABLE】The Bunsen burner is equipped with an air intake adjustment sealing door ring, which can change the flame hardness and temperature ​by adjusting the sealing door ring. 【BRASS MATERIAL】The Bunsen burner is made of brass and is durable and does not change color. 【SUITABLE PRODUCTS】Suitable to connect with thread flat tank. With triangle, also can be used with standard long tanks. (tank and not included)