and high quality. Made of high quality material, durable and practical to useOutdoor Camping for Gas Butane Cylinder Tank Refill Connector Adapter ValveDesigned to recharge refillable butane cylinder easilyConvenient and portable to use. Suitable countries: Russia, Ukraine, Republic, , Germany and other Eastern European regionsNotice: 1. Due to the highly gases, you MUST be outdoors to refill your cylinder tank. Stay clear of flames and . 2. For maximum filling, place your cylinder tank in the freezer for up to 30 mins before filling it.Inflation steps and precautions (note that the operation of is dangerous, Be sure to operate in an open outdoor place, and operate carefully):1. Install the empty bottle of the cassette gas tank on the inflation valve.2. Make sure to close the inflation valve switch tightly.3. Put the cylinder that meets standard on a stool or other stable table with a height difference of more than 20cm (make sure the switch of the cylinder is closed)4. Install the inflation valve with the cassette air tank on the cylinder.5. After placing it steadily, turn on the switch of the cylinder, and then turn on the switch of the inflation valve to start inflation (please control the inflation time, and never overcharge. The inflation capacity of the cassette gas cylinder is generally recommended to be within 180 grams, approximately After filling for a while, the gas tank can be removed and weighed to confirm whether the weight of the gas tank is too high).6. At of inflation, first turn off the switch of the cylinder, then turn off the switch of the inflation valve, and then remove the inflation valve and the cassette gas tank inturn.Colour:YellowMaterial:copperPackage Contents:1 x Refillable Adapter (adapter ONLY, cylinder NOT included, Handwheel color random and cannot be specified.)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.