Enough : there are 4 pieces of tungsten carbide scribers Durable to use: the glass scriber consists of a durable tungsten carbide tip and an Metal shell, which can handle many hard materials, such as hardened steel, stainless steel, ceramic jade, shell, glass .The tungsten carbide knife are durable and not easy to . Simple to hold: the tungsten carbide scriber is designed in pen shape with a sturdy structure, light weight, knurled aluminum handle, non-, easy to hold and control, and can be applied for and clear strokes The aluminum engraving with a magnetic design can and steel filings from hard-to-reach , and are useful for and engraving you can use to clear lines on many kinds of hard materials, suitable for glass, metal, wood, , jewelry and more Color: silver material: metal Portable and : the clip design makes the steel engraving pen easy to carry and hardly lost, you can clip your pen on your pocket Package Contents: 4 x carbide scriber 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.