FAST, Durable: Industrial monocrystalline diamonds are electroplated onto a stainless steel base. Up to 5 times faster sharpening than oil stone, water stone Sharpen and Hone ALL Hard Material including High Speed Steel, Carbide, Ceramic & Cubic Boron Nitride. Sharpen dry. No messy oil or water needed Dual Grit: Coarse 325 grit (45 micron) for quick sharpening dull and damaged blade or reset a new edge; Extra fine 1200 grit (9 micron) for honing Leather sheath made of genuine cowhide leather can act as leather strop putting the polished finish on edges for razor sharp; 2m/6.6ft. removable paracord wrapped in handle for survival tasks 3 YEARS Warranty and Superior After-Sale Service: Sharpal headquarters in CA, US with overseas branches in Germany and Australia, aiming at providing consumers with an easy and cost-effective way to obtain a sharp edge. Manufactured and field-tested to the highest standards