More suitable for woodworking: This refill automatic pencil lead is equipped with a 2.8 mm thick pencil lead, which is thicker and stronger ; it will not be easily broken or damaged during the construction process; you can 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 fine 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 writing Three-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 to use for a long time, or you can share with others. Colour:Red Material:ABS+metal Size: Pencil: 2.8 mm thick, 12 cm long marker pencil: length 14.5 cm Package Contents: 2 x mechanical pencils 12 x black pencil leads 6 x yellow pencil leads 6 x red pencil leads tips: Keep objects away 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.