This pen torch lighter can spray powerful flame and features a gas flow regulator adjustment to easily adjust flame length and size according to your needs. Different from other lighters, this pen torch lighter is made of aluminum alloy which is safer, more durable, and longer service life. It has a fuel gauge window for refill indication. You can check the gas balance and fill it in at any time. Don't worry about gas exhaustion. Turn lighter upside down and simply fill.