[Excellent Material] Copper construction with knurled handle, sturdy and durable. The fine tip provides drip-free, precise, and consistent lines. [Great Retouching Effect] 0.5mm tip size allows for accurate touch-ups on small chips with minimal paint usage, delivering excellent coverage and results. [Simple to Use] Dilute paint to a water-like consistency, then pour into the reservoir. Fill the reservoir with paint, hold the pen, and apply evenly to the surface for smooth, controlled application. For best results, mix a small amount of paint with water at a 1:1 ratio. [Easy to Clean] This fine line painting pen includes a cleaning needle to clear the precision tip and prevent clogging from dried paint or impurities. [Wide Use] Compatible with various paints, inks, liquid metal, and enamel. Suitable for use on most flat surfaces for tracing, drawing, writing, and artistic projects. After each use, clean thoroughly with the included cleaning tools and soapy water. Use the cleaning needle to unclog the tip and maintain optimal performance. Ideal for touch-ups on scratches, rock chips, crafts, calligraphy, and more. Mixing: Mix a small amount of paint with water at a 1:1 ratio for best results. Color: Gold Material: Aluminum, stainless steel, copper Size: Pen tip: 0.5mm (without liquid) Package Contents: 1 x Paint pen 1 x Cleaning needle 1 x Dropper Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.