Elenco Pocket Dice Soldering Kit [ SOLDERING REQUIRED ] 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 and instructions PCB measures 889mmX762mmX16mm Add this kit to your STEM curriculum From the company that brings you Snap Circuits - 9 volt battery not included