DESIGNED AND BUILT IN SWEDEN BY TRANGIA - Trangia Gas Burner Storm is perfectly adapted for the Trangia stove and Trangia Triangle and fits with 25 and 27 systems. It is easy to fit into the lower windshield and simple to control the cooking temperature INCLUDES A WOOL STORAGE POUCH - It’s practical and environmentally friendly – made from recycled wool from Woolpower’s production FAST BURN TIME - Approximate burn time for 1 litre of water in still wind conditions - 4 minutes EN417 COMPATIBLE – Works with threaded propane/isobutane and propane/butane gas canisters DUKE OF EDINBURGH AWARD SCHEME KIT LIST – Included on the official DofE expedition equipment list