Mechanical Pencil Marker: differing from the traditional wooden pencil, this mechanical pencil refill has built in sharpener and pen , which you can press the top of pens and the refill is retractable; It is convenient for you to use Sturdy and Illuminate Silver Refills: the diameter 2 mm round silver refills can lay out an illuminate marker that is not easily erased on the soap stone, and the reflective marking can make a visible sign on metal and oily surface 3 Claw Tip Design: the mechanical pen has a 3 claw tip that can hold the refill stronger and stop it from breaking effectively; You can also adjust the length of the refill to meet your needs Widespread Application: the metal pencil maker can make up on oily, wet, rusty metals and so on, which is suitable for fitter welder, fabrication, steel construction and even woodworking Warm note: when you press the pen topper, the refill will come out, so please put your finger on the pen tip to adjust the length that you need to avoid the whole refill falling out color:Red+black Material:Metal Package Contents: 4 x mechanical pencil 48 x silver refills Only the above package content, other products are not included. Note: Light reflection 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.