Features: 1.Material: Aluminum alloy 2. 5mm/7mm line is the result of the use of this tool 3.The Fine Line Painting Pen is a metal pen with a well for ink or thinned acrylic paint. 4.Precision Touch-Up It is the perfect tool for applying paint to prepped surfaces on hood of car for stone/rock chips. Works great even when you are writing in a 90 degree angle for a bumper. 5.It has a pigment storage function and a very fine nib for artistic activities such as tracing, drawing and writing, and is also suitable for refinishing some furniture and hardware even touching up paint on cars. 6.May be used on most surfaces including fabric, wood, metal and canvas. Cleaning tool included. 7.Perfect for students, hobbyist, and traveling artist How to Use Step1: Take a small amount of paint and mix 1:1 wiyh water Step2: Dilute the paint to a watery state and put it in the storage tank Step3: Insert the cleaning tool into the tip until the tool has paint on it Step3: Write evenly on the surface and let the paint slide gently Care: 1.After use, soak the paint for a while in lacquer thinner (so-called thinner) [sold separately], and lightly dab it on a tissue several times while unclogging it with the included tool to clean it off. 2.Clean Thoroughly clean cup well and stem after each use by soaking in warm water. To clean inside the stem, use the thin metal needle and push it through the stem. Rinse pen and dry well. Note: 1.Please practice before use to make sure the paint comes out correctly from the extra-fine pen. 2.Please take good care of the pen after use so that it can be used over and over again. 3.The nib is 0.5mm/0.7mm ultra-fine, it may be difficult to remove paint depending on the strength of the paint. In such cases, it is necessary to poke the nib or dilute the paint itself. 4.The neck of the Fine Line Pen is screwed on and can be rotated 360 degrees. However, it can be detached from the pen. It can be attached even if it is removed. Please be assured that it is not a defective product. However, if you turn it too far, there is a possibility that a gap may be created due to friction, so please do not turn it more than necessary. 5.When using the attached needle type, there is a risk of breaking if strong pressure is applied, so please use with caution. 6.The tip of the pen is 0.5mm/0.7mm and very thin, and the container will be full in just one or two drops. Package Include: 1Pc X 0.5mm/0.7mm Fine Line Painting Pen