This is the Circuit Scribe Conductive Ink Pen, a simple looking ball-point pen that allows you to draw circuits instead of soldering or wiring them to a breadboard. This is the same pen found in the Circuit Scribe Lite Kit just without the LED module and batteries, we understand that you may just need to draw out a quick circuit with your own parts or need a replacement pen. With Circuit Scribe you can draw exactly what you want, no wires or breadboard required. You can build a circuit with nothing but a coin battery, paper clip, and LED, or build out complex circuits with multiple components. The Conductive Ink Pen uses a non toxic, silver conductive ink that writes on any surface a regular roller ball pen would with a resistance of 2-10 Ohms/cm. Features: * Ink Resistance: 2-10 Ohms/cm * Line Width: 0.4mm * Squeeze-Free Pen Documents: * CircuitScribe Sketches * Pen Maintenance * [MSDS](https://cdn.sparkfun.com/datasheets/Components/General/Circuit Scribe MSDS.pdf) * Product Video https://elecena.pl/product/4967207/circuit-scribe-conductive-ink-pen 2015-01-09 https://elecena.pl/product/4967207/circuit-scribe-conductive-ink-pen 2018-05-05 https://elecena.pl/product/4967207/circuit-scribe-conductive-ink-pen 2020-02-05 https://elecena.pl/product/4967207/circuit-scribe-conductive-ink-pen 2022-02-21 https://elecena.pl/product/4967207/circuit-scribe-conductive-ink-pen 2024-04-11