Points: 1Excellent MaterialBrass construction with knurled handle, sturdy and durable. The fine tip gives you drip perfect, and consistent-width lines. 2Great Retouching EffectTwo specifications, 0.5mm and 0.7mm, so even tiny chips, you can retouch without using too much paint, and the retouching effect is excellent. 3Simple to UseDilute the paint to a water-like consistency, then pour it into the water reservoir, just fill the reservoir with paint, hold it, spread evenly on the and let the paint glide gently. Take a small amount of paint and mix 1:1 with water for best results. 4Easy to CleanThis fine line painting pen is equipped with a pen barrel to unclog needle for cleaning the precision nib hole of the pen to prevent the nib from being clogged by impurities. 5Wide UseAll kinds of paint/ink/liquid metal/enamel can be added on almost any flat suitable for artistic activities such as tracing, drawing and writing. Description: After each use, clean thoroughly with the provided cleaning tools and soapy water, and then use the pen holder to unclog the needle to prevent the pen tip from being blocked by impurities. Perfect For Scratches, Rock Chips, Arts and Crafts, Calligraphy and More! Please allow 1-3mm differences due to manual measurement, thanks for your understanding. Due to the difference between different monitors, please understand that the picture may not reflect the actual color of the item. Features: Material: Copper Specifications: 0.5mm, 0.7mm size: Paint pen: 18cm/7.09in Dredge needle: 7cm/2.16in Dropper capacity: 1ml Mixing method: Take a small amount of paint and mix it with water 1:1 for best results. List: 1*paint pen 1*dragging needle 1*droppe