[Long Head Deep Hole Marker] This hole marker features an extended nib that can fit into tight spaces or mark inside small openings, ideal for nail and screw holes in frames and wood. [Versatile Marker] The long head deep hole marker is suitable for furniture assembly, marking drill positions for shelves and lamps, and identifying deep holes in metalworking, automotive, and industrial applications. [Waterproof] This long nib marker dries quickly, resists smudging, and is waterproof. It performs well on most clean, dry surfaces including aluminum, metal, concrete, glass, wood, and plastic. [Durable] Constructed from high-quality plastic, this marker is sturdy, long-lasting, and resistant to aging. Its ergonomic design provides a secure grip, and includes a 60mm ruler on the side for convenient measurements. [Handy Marking Tool] The long nose marker is ideal for DIY projects and crafts. Its design enables precise, bold markings and access to hard-to-reach areas, making it a practical tool for carpenters and DIY users. Color: Black/Blue/Red/Green/Mixed Colors Material: Plastic Package Contents: 4 x Long Head Deep Hole Marker Note: Light reflection and different displays may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.