Feature: 1. Set Contents: Our carpenter pencil refill set contains 3 red, 3 yellow and 6 black refills, and 2 storage boxes, enough for your daily work. 2. Black Refills: The black refills in the carpenter's pencil refill set are made of graphite and are stable and reliable for many regular drafting tasks. 3. Red and Yellow Refills: The red and yellow refills in the refill set are made from wax that dissolves in water and can be wiped off with a wet cloth when marked incorrectly, leaving a beautiful, unmarked finish. 4. Accurate and Practical: The 2.8mm diameter of this carpenter's pencil refill with the carpenter's pencil allows you to play in different situations with great results, accurate and practical. 5. Suitable Scenarios: Our carpenter's pencil refill set is suitable for construction, decoration and automotive, welding and other fields, for materials such as metal, glass, jewelry and woodworking. Specification: Item Type: Carpenter Pencil Refill Material: Graphite, wax Refill Specification: HB Size: Approx. 120 x 2.8mm / 4.72 x 0.11in Quantity: Black 6pcs, Yellow 3pcs, Red 3pcs. Package List: 3 x Yellow Pencil Refill3 x Red Pencil Refill6 x Black Pencil Refill2 x Storage Box Note: Manual measurement may have error. Please make sure you don't mind before ordering.