Fast heating: High-powered glue gun for fast heating. Only 1-3 minutes preheating required. Saves time, is safer and more efficient. Adjustable temperature: The glue gun is equipped with a temperature adjustment knob which can be adjusted in the range of 140 degrees - 220 degrees. The different temperatures control the speed of the glue and make it smoother. Multiple nozzles: The nozzles of the glue gun can be changed freely and all of them are leak-proof. The pure brass material is more durable. All sets contain a wide range of nozzles to suit your different needs at work. Safe glue gun: The use of a PTC thermal heating element with enlarged heat sink prevents the glue gun from overheating; with an insulated power cable and built-in fuse makes this glue gun multi-protected and safer to use. Wide application in DIY handcraft and repair job., Manufacturer: YFDGD