Elenco Pocket Dice Soldering Kit with Iron and Solder Hone your DIY soldering techniques on this Pocket Dice Soldering Kit Enjoy the pleasure of having assembled and soldered it yourself A slick new alternative to clunky plastic dice with DIY randomization CMOS circuitry gives Includes: PCB, electronic components, instruction and 25 watt soldering iron, stand and lead free, rosin core solder PCB measures 889mmX762mmX16mm Add this kit to your STEM curriculum From the company that brings you Snap Circuits - 9 volt battery not included