Durable material: The glass tip has a durable tungsten carbide tip and an aluminum body, so it can easily handle tough materials including steel tempered, stainless steel, ceramic and glass. Disposable briquetting tungsten carbide blades are more durable than others and not easy to drop. Magnetic: Permanent magnets in this engraving tool pick up small parts and catch metal filings. #39;steel hard-to-reach places. Comfortable use: Convenient pen design and handy pocket clip, knurled aluminum handle for maximum control and comfort. < p>Easy to store: when not in use, the tungsten carbide tip can be reversed. Replaceable: There are 4 free replacement marking tips.< /p> Advantage: 1.Robust construction built to last 2.Simple and comfortable to use 3.Easy to carry and carry stock 4.four free spare tungsten carbide tips 5. Wide application 6.Excellent after-sales service Specifications: Size: Length: 137mm Weight: 18.2 g Scriber Material: Aluminum, Tungsten Carbide, Magnet Package Content: 4 x Carbide Tips 4 x Replacement Tips luckymeet