Feature: 1. Excellent air‑conductivity due to rapid air‑drying, and the liquidity of the coating is long, which is very practical 2. You can imagine the lines painted with conductive ink as liquid wires, and you can combine your own creativity to draw vivid circuit patterns. 3. Conductive ink can adhere well to common materials and is not easily washed away with water. 4. You can spray a layer of varnish on it, if you don't want to erase your work and want to make him more durable 5. Small size, easy to carry and store, convenient to use and with good performance Specification: Item Type: Conductive Ink Pen Material: Plastic Coating Composition: Silver-copper mixed powder, metal nickel powder, coating resin, conductive agent Paint Color: Black Net Content of Paint: 6ml. Package List: 1 x Conductive Ink Pen Note: If one painting fails to conduct electricity, wait for the first layer of ink surface to dry and repeat painting, use a hot air gun to speed up ink drying