Elenco  K-34 One Button Bandit Soldering Science Kit Hone your DIY soldering techniques on the One Button Bandit Soldering Kit; Enjoy the pleasure of having assembled and soldered it yourself One Button Bandit is a simplified version of an electronic slot machine Push the button, the bandit stops, only one LED in each column remains lit If three green LEDs light up, you win the jackpot and a cacophony of sound Includes: PCB, electronic components and instructions PCB measures 73mmX1349mmX16mm Add this kit to your STEM curriculum From the company that brings you Snap Circuits - 9 volt battery not included