Engraving pen is made of aluminum and tungsten carbide materials, with excellent durability, will provide you with good service. The surface of these pens is non-slip, which allows us to use it conveniently. The etching engraving pen can engrave glass, ceramics and metals. Features -Color:Silver -Material:Aluminum, tungsten carbide -Size:12.50X0.70X0.70cm/4.91X0.28X0.28in - The carbide is lightweight, anti-wear, non-deformation, easy and comfortable to hold. - Tungsten carbide tool comes with replacements marking tip, can satisfy your daily use and replacements. - The can easily handle hard materials including hardened steel, stainless steel, ceramic and glass. - Metal engraving tools are made of reliable material, thick and not easy to break, ensure smooth scribing. - Nonslip design and convenient pocket clip, pattern handle provide maximum control and comfort. Package list: 2 x Tungsten Carbide 10 x Marking Tips