Product Material: Metal Alloy Quantity: 6 pieces Package Contents: 6 * Set of Pens 1.Durable Cutting Tools: The glass cutter uses ultra-strong diamond carbide blade with firm hardness and sharp cutting , to ensure smooth operation. 2.Ergonomic and Non-Slip Cutter: The non-slip metal handle combines an ergonomic design that allows for comfortable holding and labor-saving for a better customer experience. The cutter is threaded to ensure slip resistance. cut glass with different thickness. 3.Round Metal Cutting Head: The metal head is made of high quality steel, wear-resistant and well polished. It could be used to hit glass after cutting or put it under the glass scraper and split the glass. 4.Compact Glass Cutter Tool: The glass scribing tool is lightweight and portable for easy carrying and walking. It can be put in your backpack or packed anytime, anywhere and should be added to your collection. 5.Versatile Glass Bottle Cutter: It is perfect for cutting stained glass and other craft and household uses. A must-have cutting tool for DIY projects. It is suitable for mirrors, windows, glass shelves, stained glass cutting, etc.