Circuit Scribe Non-Toxic Conductive Silver Ink Pen - Award Winning Design That Makes Creating Circuits and Switches Easy As Doodling - Writes on Any Paper!

Our flagship conductive ink pen now comes alone! Use it on any surface a rollerball pen will write on. The Circuit Scribe can draw 60-200 meters. 60 meters is seen on surfaces similar to a napkin, and 200+ meters on photo paper. Pen erases on photo paper by scratching the ink away, and is also the most conductive on this surface (<2 ohms/cm). Soldering is also possible but tricky, and greatly dependent on paper/surface type and solder type.

Features of Circuit Scribe Non-Toxic Conductive Silver Ink Pen - Award Winning Design That Makes Creating Circuits and Switches Easy As Doodling - Writes on Any Paper!

SCIENCE IN THE PALM OF YOUR HAND - Created by a team of PhD students at UIUC and Harvard, the Circuit Scribe enables anyone who can doodle to create brilliant, original, and fun circuitry! | AWARD WINNING DESIGN - Amazingly user-friendly, our pen was funded by over 12,000 backers on Kickstarter and went on to win Popular Science? ?nvention of the Month.| NON-TOXIC SILVER INK - One of the secrets to our success is our non-toxic, quick-drying, highly conductive silver ink. Equipped with a 1mm ball tip, it can be successfully used on nearly any surface. | ENDLESS POSSIBILITIES - This pen is super versatile. You can use it with everything from standard office supplies to sophisticated pen plotter machines. Best of all? It? safe and ready for ages 8 and up. | PRODUCT SPECIFICATIONS - Resistance: 0.05-0.2ohms/sq/mil (2-10ohms per cm of writing). Capacity: 60-200 meters (depending on surface). Can be erased from photo paper (most conductive surface).