60 watt soldering iron with variable temperature control. Replaceable tip. Comes with 1/16" chisel tip. The same iron that is in the total Soldering Kit and the one model I have used for ten years. A good soldering iron is a definite "must have" if you want to do the best job wiring your doll house. I have an entire chapter in my Electrical Wiring Booklet devoted to the proper use and reasons for needing a soldering iron.