Wood Burning Kit Tool Adjustable Temperature Pyrography Gourd Board Rice Paper Soldering IronUS Plug 110V Item Type: Wood Burning Kit Tool Material: Plastic + iron Instructions: 1. When loading the pen tip, the screw that tightens the pen tip should be pressed against the heating wire of the pen tip and tightened to avoid poor contact between the pen tip and the terminal, which make the tip is not hot, but the terminal is overheated to burn the accessories. If the terminal is too hot, that is the pen tip is not tightly fixed, so use a screwdriver to tighten it in time. 2. You should choose an electric heating wire less than 1 mm as the pen tip. Don't choose iron wire and other non-heating wire materials as the pen tip. This is very dangerous, which is easy to burn all the accessories in the movement, and easy to get electric shock and fire.