[Deep Hole Marking]Our long nib marker is designed with a 1.1 inch/30 mm elongated tip, perfect for marking in deep holes or hard-to-reach places. This pen is ideal for construction markers, ensuring precision in every task [ Material]Made from premium plastic material, these construction markers are strong and sturdy. The thin, round nib of the metal marking pen ensures that handwriting is not easy to fade, making it a reliable long head deep hole marker for surfaces [Quick-Drying and Waterproof]These waterproof pens are quick-drying, ensuring that your markings do not smudge or fade over time. Perfect for use as a construction pen, pencil, or marker on surfaces like wood, metal, glass, and plastic [Versatile Use]Our multi-purpose wood markers are suitable for marking and drilling positions, furniture decoration, and more. These long nib markers can mark most dry and dust-free surfaces, making them ideal for metal marking pens and other construction tasks [Package Includes]You receive 6pcs long head deep hole markers in 3 different colors (black, red, blue), with 2 pieces of each color. This comprehensive set of waterproof pens ensures you have the right tool for every job Category: Marker Pen Product Size: Pen length: 5.23 inches/13.3 cm Tip length: 0.78 inches/2 cm Colour:As shown Material:plastic Package Contents: 6 * Deep Hole Marker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.