By adding a tough elastomer armor, Windmill's Delta Storm proof lighter has the qualities you would expect plus incredible impact resistance. Delta features a stainless steel wire closure to stay watertight even if dropped. Windproof to 80 mph, Refillable with butane gas - Burns for over 30 minutes per premium butane fill and has an easy to read fuel gauge, Piezo electric ignition good for over 30,000 instant ignitions.