describe Durable material: The engraving pen is made of tungsten steel as a whole, with high strength, rust and wear resistance, and long service life. EASY TO USE: Fast, hard carbide tips make scratching and engraving easy. Non-slip knurled handle for a comfortable grip and better control when carving. COMFORTABLE PRESS: The alloy pen provides maximum control and comfort, just apply the layout fluid and start writing. Poratble: The portable pen clip is designed to prevent the loss of the pen, which can effectively prevent the loss of the pen. MULTI-PURPOSE: Whether you're working with wood, metal, plastic, ceramic or glass, this precision tool will give you an accurate hairline. Possibility of marking. Size: 14 cm Material: Tungsten Steel + Alloy Color: Gold + Silver Package Contents : 8 x tungsten carbide nibs Tablets Package contents are as above, other products are not included. Note: Different lighting and monitors may cause the color of the item in the picture to be slightly different from the actual item. The allowable measurement error is +/- 1-3cm.