One touch operation: simply press the button and the welding pen works, no other complicated steps. The burning kit can be easily used for all qualification levels, regardless of whether you are wood burning beginners, experienced or experts.Ergonomic design: lightweight and ergonomic body helps you work at different angles, comfortable to hold and easy to control, and the protective case with high temperatures protects your hand when working. With a cordless design, you can use it anytime and anywhere.Ultra fine tip: The thread burner is designed with ultra-fine tips that allow you to get precision burns even on the best threads and knots, which are perfect for ultra-fine work such as bead and rope weaving projects.Quick heating in 2-3s: the thread storage can be heated to up to 700F/371C in 2-3 seconds, which allows you to melt quickly, so you can do your art job and improve your work efficiency. The thread tensioner is powered by 1 x AA battery (not included). Please prepare the battery before use.