Features and Benefits: * Sharpens knives and tools faster than conventional stones with DMTs monocrystalline diamond surface * Two sided: Coarse diamond to transform a dull edge and Fine diamond for a razor sharp edge * Portable, lightweight with convenient fold and go handles, which enclose and protects the Diamond Whetstone when not in use * No oil is needed-sharpen dry or with water * Durable construction will provide years of consistent performance and reliable service Two stage sharpening with compact convenience. Two Diamond Whetstone sharpeners combined to create a lightweight sharpener that is great for home, camper, tool box, gardening shed and more. Fine diamond (25 micron / 600 mesh) for a razor sharp edge. Coarse diamond (45 micron / 325) to quickly restore a neglected edge. Convenient size: 9-1/2 open. 5 closed. Folding plastic handles protect sharpener when not in use. Sharpens in a fraction of the time required by conventional stones. No messy oils neededsharpen dry or with water. Durable construction will provide years of consistent performance and reliable service For proper tool maintenance, woodworkers, chefs and other professionals rely on the superior quality and versatility of DMT products. Made in USA.