Miracle Blade World Class Series 18 Piece Set Including Knife Block Never Dull - Never need sharpening Provide Precision Control - For quick chopping, slicing, cutting and dicing The instructions specifically say to HAND WASH to maintain the beauty of the knives. There are also dishwasher instructions. Dishwasher Safe - Quick and painless cleanup Scrubbing the knives with foil (first wetting the foil) will easily remove any rust if washed improperly and not dried as per the instructions. Comfortable Composite Handles - Easy grip stops slipping and sliding. Attractive Design - Enhances any kitchen decor The knives come with instructions on handling and cutting. This Product comes with Manufacturer's Warranty