Powerful - powerful single jet flame is strong enough for igniting and small enough for butane saving Windproof - windproof jet flame makes it can used outside on very windy days and does not blow out Adjustable - the adjustment wheel at the bottom of the lighter is really easy to use since no other tools needed Fuel Window - big clear fuel window is convenient to check the fuel level during using and refilling Handy - It is the one you could hold and carry in your pocket easily since it's small and light enough