Circuit Scribe Basic Kit &ndash; Includes Conductive Silver Ink Pen to Learn, Explore, and Create Your Own Circuits and Switches! CIRCUIT SCRIBE SUCCESS  Designed by PhD students at UIUC and Harvard, Circuit Scribe puts the power of conductivity into a pen, making the joy of creating circuits available to everyone who can doodle. BASIC KIT, BIG POTENTIAL  With the Basic Kit, you actively explore basic circuit concepts and switches, working up to creating touch-sensitive circuits of your very own design! GET BUILDING NOW  Ready to go right out of the box, our basic kit is perfect for young, creative scientists and features our famous, non-toxic, conductive silver ink pen that can write on just about any surface. EXPLORE, LEARN, CREATE  A fun and accessible introduction to circuitry, as you build increasingly complicated systems youll be learning about current flow, digital logic, and more! KIT INCLUDES  9V battery and adapter, 2 Bi-LEDs, SPST Switch, NPN Transistor, 2-Pin Adapter with 5 resistors, 2 capacitors, photoresistor, stencil, steel sheet and jumper sticker sheet.