4. Can be used with 50-100W pyrography machine. 3. 9 different tips are used for different functions, such as for large-scale rendering, fine rendering, and drawing even lines. 1. The high impedance tip is made of metal material, it is high resistance and high temperature . 2. At high temperatures, there is no bending, no softening, no oxidation, less carbon and so on. 5. The strength within 600 degrees is not bent without heating and the bending resistance of the writing head made by electric heating wire is much 800 degrees., Weight: 0.01322773572 Pounds, Manufacturer: rirue