The AccuSharp Knife Sharpener will sharpen knives, even serrated knives, cleavers and many other cutting tools without oils or stones. The compact size is great for the toolbox, tacklebox, gear bag or backpack. The large ergonomic handle has an attractive olive drab green finish and fits either hand safely and securely while the full-length finger guard protects fingers. Sharpening blades are diamond-honed tungsten carbide for years of reliable use. AccuSharp will not rust and can be cleaned with soap and water or in the dishwasher.