Complete Carpenter Pencil Set: The nuqin joiners pencil set includes 1 mechanical plastic pencil and 6 pieces of 2.8 mm refills in three different colours (2 black, 2 red, 2 yellow) to cater to your diverse woodworking marking needs. High-Quality Lead Material: The joiners pencil's black graphite lead is ideal for metal or dark surfaces, while the yellow crayon lead works well on light surfaces such as wood and stone. The markings are clear, precise, and resistant to smudging or breaking. Practical and User-Friendly: Never lose your construction pencil thanks to its sturdy pocket clip. Additionally, the built in pencil sharper is integrated into the lead holder pen, ensuring your lead is always sharp for precision work. Innovative Finger Grip Design: Our racer pencil features a new finger grip for easier writing. It's even removable, allowing you to switch to deep hole marker mode quickly. Say goodbye to the days of not having the right racer pencil at hand. Widely Applicable: This mechanical builders pencil is suitable for various surfaces including wood, metal, concrete, ceramic tile, glass, and paper. It's perfect for carpenters, architects, designers, and business professionals.