⇎【Uniform Width】The nib thickness of this fluid writer paint applicator pen is 0.5mm and 0.7mm, the slender nib allows you to draw lines without drips, flaws, and uniform width, making your writing and painting process smoother and avoiding paint waste. ⇎【Easy to Apply】Just take a small amount of paint, mix it with water in equal proportions to dilute it to a water-like consistency, then fill it into the tip of the pen, hold the precision paint pen like a normal pencil grip, and it can be applied evenly the surface, making it more convenient. ⇎【Simple to Clean】After each use, please remember to soak the fine line painting pen with warm water to clean the barrel of the fine line painting pen thoroughly. ⇎【Multiple Uses】Use these Fine Line Painting Pens for painting, line drawing, signing, French matting, and even touch-up painting cars. Ideal for students, hobbyists and traveling artists. ⇎【Durable Material】The slanting fine line paint pen made of durable brass material is golden in color, and the knurled slant handle has a retro hand feel.