A great product for those who want an alternative to using toxic chemicals. The Weed-Wand is an environmentally friendly and non-toxic method for eliminating unsightly weeds on patios, driveways, paths, etc, using regular butane gas cylinders (not included). Just open the propane valve, press the igniter switch and you are ready to sweep the Weed-Wand over the weeds. Not for use on lawns or flowerbeds. We recommend that you remove the gas cylinder when not in use.