Multi-Color Waterproof Fast Drying Oil-Based Long-Head Marker For Deep Holes 10ml Features: -Drying and Waterproof: These markers dry quickly and are waterproof, making them for marking on various surfaces such as metal, wood, and tiles。 Long-Head Design for Deep Holes: The long head allows for easy marking in narrow and deep holes, making them for detailed work。 Multiple Colors Available: Available in a variety of colors including black, red, blue, and green, giving you more options for different marking needs。 Oil-Based for Long-Lasting Marks: The oil-based ink ensures that the marks are long-lasting and to fading。 Versatile Use: Suitable for various applications such as woodworking, construction, and DIY 。 Product Description: Name：Special Purpose Marker Type：Oil-based pen Features: long nozzle, waterproof ink, fast drying, xylene-free Applicable scenes: metal, wood, glass, gel, etc.