Circuit Scribe Basic Kit &ndash; Includes STEM Workbook, 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 you&rsquo;ll 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, jumper sticker sheet, and workbook.