Various surface markings: solid woodworking pencils can be drawn on metal, plastic, glass, wood, paper, etc.; drawing pencils are durable, can remove grease, and are stronger than hard anytime and anywhere; yellow can be painted on dark surfaces that are not gray superior.Can be refilled compatible with continued use: The woodworking mark is pre-filled with gray and comes with a supplement box, which includes 3 grays and 3 yellows, which can meet your long-term woodworking marking needsprofessional carpenter pencilsadapted marked by holes or other close regions, using a long needle holder in the nose marked hard to reach places.Type: BMaterial:Metalcolour:BlackPackage Contents:1 box x refills (6 black)Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.