Versatile Usage: This marking crayon is good for making lines or marks on a variety of rough surfaces such as ceramics, wood, stone, cardboard, steel, and fabricCompact Design: Despite its small size, this crayon set offers great utility for various marking needs in both professional and DIY projectsMaterial: This carpenter pencil made from ABS, POM, and PP wax core materials to ensure long-lasting performance and reliabilityConvenient Size: Each crayon measures 15cm in length, making it easy to handle and store without taking up much spaceComplete Set: The package includes a capped pen core box with white cores and red core for versatile marking options Specification: Material: PP Size Chart: 15cm/5.91inch Package Includes: 1 Carpenter Marker Pen Set Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.