Made of aluminum alloy with fine workmanship, strong, for long time use. This product can be used together with 4 outdoor cassette gas tanks for gas supply. It is generally used in products with large gas consumption to that the gas tanks are not changed during long-term use. Or when a product is in use, a gas tank is not enough gas, but it cannot be turned off to replace the gas tank in the middle. In use, the gas between the gas tanks not circulate with each other, and the gas with high pressure not flow to the low pressure, so as to the safety of use. 4 gas tanks can be connected to the product, which can be used with 2 or 3 gas tanks, and the gas not leak if the other is not connected. The threaded interface is 7/16-28 teeth, and is used for outdoor cassette gas tanks. Or use in a 110g flat can. Colour:silver+orange Material:Aluminum alloy Package Contents: 1 Piece 4 in 1 Stove Adapter 4 Piece converter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.