Cold Steel Stylus Knife Sharpener - The Stylus is a retractable knife sharpener in a durable ABS plastic case. It is specifically designed for sharpening serrated knives but can also be used on plain-edged knives. The sharpener has a 600-grit surface and is perfect for providing a good serviceable edge on a wide variety of blades. Great for serrated blades, plain edged blades, hooks, and home and garden tools. Features 600 Grit for fine sharpening Retractable Compact design with pocket clip Durable lightweight ABS plastic housing