and Features: Made of material, great conductivity, solid and durable, long lasting. The main ingredient is silver conductive copper mixed powder and nickel powder, conductive effect0.025/cm, it can conduct electricity in two or three minutes after -dried. With its superior performance, you can do more simple or complex electronic production. Simplify operation, easy to use; simple circuit rep, fun circuit making. Suitable for interesting circuit production, circuit rep, etc.. Specification: Material: Plastic Ingredients: Metal Powder Size: app.13cm/5.12in Capacity: 6ml Pen Color: White Quantity: 1 Pc Warmly Tips: Shake well before using and you need to maintain a continuous and uniform line when you write, if still not conducting, you'd better to check and find the break by using the multimeter. Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Conductive Ink Pen Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.