The self contained Soldering Kit includes an LP Gas Cartridge that fits in the handle and provides up to 2 hours of use. This kit is ideal for repairs or small jobs on the roof. The unit also offers a thumb controlled igniter fro easy on and off and is equipped with a medium long life hammer tip. This kit comes in a metal box. Kit Includes: Hoseless Soldering Iron with Self Ignition Button, Medium long life hammer tip, Two propane gas canisters.