FOR SAFE FILLING OF A LIQUID FUEL CAMPING STOVE BURNER - The unique design of the safety cap allows you to pour the liquid without removing the cap. The cork has a venting spout and a pouring spout that allows the liquid to flow smoothly, reducing the chance of spills DESIGNED SPECIFICALLY FOR THE TRANSPORTATION OF FLAMMABLE FUELS - Tested by TÜV to meet international standards DUKE OF EDINBURGH AWARD SCHEME KIT LIST – Trangia Fuel Bottles are included on the official DofE expedition equipment list