More suitable for woodworking: This refill automatic pencil lead is equipped with a 28 mm thick pencil lead, which is thicker and stronger for you; it will not be easily broken or damaged during the construction process; you can finish the painting effortlessly jobs.Effective scientific design: The refill of the woodworking pencil pen can be easily replaced; the pen tip is designed in the form of a roll-to-knife, so there is no need to purchase a separate pencil sharpener; after using the pencil sharpener, install the pencil lead on the pen; normal storage Will not take up too much space or lose small objects.Practical and smart pen: This construction carpentry marker is sturdy, precise, and practical. Because of its red color, it can be seen clearly even in the middle of the construction site; in addition, its 6 mm and 43 mm long dots allow it to be invisible to oily pencils. Draw from the hole you enter, this is a practical and Humanized materials: These solid wood pencils are designed with metal and rubber materials to provide you with a comfortable and non-slip writing experience; high-quality pen holders can protect your pen core from damage and relieve finger pressure when writingThree-color replacement refills:Refills of different colors of mechanical pencil refills can be used to draw different marks, easy to distinguish, and there are enough numbers for you to use for a long time, or you can share with others.Colour:RedMaterial:ABS+metalSize:Pencil: 28 mm thick, 12 cm longmarker pencil: length 145 cmPackage Contents:2 x mechanical pencils12 x black pencil leads6 x yellow pencil leads6 x red pencil leadstips:Keep sharp objects from children.Only the above package content, other products are not included.Note: Light 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.