A great addition to the fuel tank. It is good helpful for outdoor cooking. Features: High quality PVC gas pipe effectively prevents leakage. The length of 70 cm is long enough to get out of the gas tanks. Heavy-duty copper control valve, sturdy and durable. Easy to use and inflated with built-in pres-relief system. Adjustable valve for more convenient to use. Practical and reusable to refill or connect the fuel tank. Lightweight and compact size for easy carrying and storage. Note:1. When it cannot be inflated, excess pressure is needed.2. Do not use it at home in case of poisoning.3. Use it in an open area and keep it away from fire.4. It is forbidden to be overweight.5. Keep away from children. Specifications:Material: pvc + copper Length: 70cm / 27.6in Package size: 19*13cm/7.5*5.1in Package weight: 150g / 5.3oz Package list:1*Gas filling tube