Made of high quality aluminum, copper and high temperature resistant nylon, heat resistant, practical and durable, the auto close function will not leak when connecting to the long tank gas bottle even though the furnace is not connected. 2 pieces gas bottle adapter, suitable for camping stove burner split type furnace connection. Automatically closing, perfect fit, no leakage. Suitable for camping stove burner split type furnace. This adapter allows you to convert the nozzle bottle into a valve container so you can use an inexpensive butane container for your camping stoves. Convert just stock cans. It is light and portable, easy to carry and store, suitable for split-type oven, convenient to use. Gas burner adapter is suitable for outdoor camping burner, hiking, picnic burner, hunting and other outdoor activities. The snap lock of the adapter is first aligned with the bayonet of the gas cylinder. Then, press firmly on the adapter head and rotate it clockwise until it can no longer be rotated. Finally, connect it to the camping stove.