The Regin Smoke Pen is truly an innovation in the world of smoke testing. This innovative product works like a mechanical pencil. Our patented smoke emitting wick is inserted into the convenient to use pen, adjust the wick to provide 3/8″ of exposed wick, light the wick with a match or lighter. The Smoke Pen will provide a continuous trail of smoke. The Smoke Pen can then be easily extinguished by simply replacing the protective cover. The Smoke Pen can then be stored and re-used. Each wick will smoke for approximately 30 minutes.