Form follows function in this beautiful piece of industrial design. The P'3642 has a special closed mechanism emitting a fine, consistent flame. A cap is designed to protect the inlet from dust. Like others in the Porsche Design lighter collection, a window shows the lighter fuel level allowing you to know when a refill is needed. The tank capacity is a generous 1. 0 gram. Please note that storm lighters may not be carried in aircraft, both in hand luggage and checked baggage. Please also note that all Porsche Design lighters are storm lighters.