Features:<br> brand new and high quality<br> The conductive paint pen will quickly dry off on the paper to form a conductive metal film, so as to generate a circuit diagram. Once an electronic circuit is formed, the LED light on the paper can be illuminated.<br> Suitable for physics teaching, circuit design, circuit wiring, circuit experiment, luminous card, etc.<br> The conductive paint pen is mainly composed of silver conductive copper mixed powder and nickel powder, which has good conductivity.<br> Strong conductivity, strong adhesion, stable performance and simple operation.<br> It is not suitable for use on the skin. Do not use your own skin as a circuit.<br> <br> Specifications:<br> Material:Plastic<br> Length:12.7cm/5.00inches<br> <br> Note:<br> Please allow 0-1mm errors due to manual measurement, make sure that you do not mind before you order.<br> <br> Package includes:<br> 1 x Circuit Repair Conductive Paint Pen