Description Made of copper. Well-structured, corrosion-resistant and durable. The installation is correct and leak-free, and the threads are cleanly cut and tightened. When the stove is not connected, the adapter will automatically shut down, ensuring your safety perfectly. Features - Color: Golden. - Material: Copper. - Size: 3.00 x 3.00 x 3.00cm/ 1.18 x 1.18 x 1.18 inch. - Universal propane refill adapter is made of copper which is corrosion resistance. - This is a convenient match for you to hook up a small bottle to your gas grill. - Propane adapter have male cylinder thread, you can use on hose and regulator. - Universal for all propane tank, easily fill bottles, it’s heavier, bigger, and safer. - For your safety, the adapter automatically cuts off gas flow when pressure is reached, for maximum filling. Universal propane refill adapter is made of copper which is corrosion resistance |This is a convenient match for you to hook up a small bottle to your gas grill |Propane adapter have male cylinder thread, you can use on hose and regulator |Universal for all propane tank, easily fill bottles, it’s heavier, bigger, and safer |For your safety, the adapter will automatically cuts off gas flow when pressure is reached, for maximum filling