This professional electric knife sharpener safely and quickly gives kitchen, sports, and pocket knives an incredibly sharp, longer-lasting edge with no guesswork. Patented 3-stage process, 100% diamond abrasives and foolproof magnetic guides create razor-sharp edges. Sharpens the entire edge of kitchen, fishing, hunting and pocketknives. Safe for quality knives. Acclaimed worldwide by serious cooks and renowned chefs. Two-year limited warranty. Assembled in the U.S.A.