No need to buy extra flat tanks; you can use the gas stove adapter to refill your gas tank from a liquefied gas cylinder, saving time. No air leakage, safe to use. Lightweight and portable, this rubber hose is ideal for most outdoor activities. Offers good flexibility and is easy to fold and carry. Made of high-quality copper, iron, zinc alloy, and rubber materials. Length: 50 cm. Suitable for camping, hiking, backpacking, and more. Item Name: Gas Refill Adapter Material: Copper, Iron, Zinc Alloy, Rubber Features: Leakproof, Heat-resistant, Reusable, Safe Size Details: Length: 50 cm / 19.69 in (Approx.) Notes: Due to differences in lighting and screen settings, the item's color may vary slightly from the images. Please allow slight dimensional differences due to manual measurement. Package Includes: 1 x Gas Refill Adapter