Function: Can be used to replace long gas containers with flat gas containers, reducing costs. Material: Made of high temperature resistant aluminum, copper, and nylon. Sealed design, safe and durable. Size: 28 x 38 mm / 1.1 "x 1.5". Suitable for cracking furnaces, safe and easy to control. Safety function: Sealed on the adapter, with automatic closing function. Automatically turns off when the furnace is not connected, no need to worry about leakage. Performance: Lightweight and easy to carry. Excellent accessories for camping, picnics, barbecues, etc.