The Long Head Deep Hole Marker is an essential tool for carpenters, construction workers, and DIY enthusiasts. This upgraded permanent marker set features four vibrant colors that deliver quick-drying, waterproof ink with a long-lasting nib. The extended nib design allows you to reach deep into tight spaces, making it ideal for marking on wood, concrete, metal, and other surfaces. Whether you're framing walls, laying tile, or working on intricate woodworking projects, these markers provide precise and durable markings. The quick-drying formula ensures your lines stay crisp and clear, while the waterproof ink resists smudging or fading. With their comfortable grip and versatile design, these markers are a must-have addition to any toolbox. Effortlessly mark, label, and identify your work with the Long Head Deep Hole Marker set.