Nitrogen Welder™ mini plastic 110 volt welder operates on either compressed air or nitrogen supplied through a regulator and tank. This brings a new level of affordability to plastic welding. Light weight and portable all of the setting for temperature are already preset. So it's as simple as plug in both to power, air and turn it on. Includes a scraper cleaning blade for cleaning edges of plastic weld areas, welding rods and a smoothing roller device.