CalphalonFeaturing a wood knife block with built-in ceramic sharpeners, the Calphalon Precision Cutlery Self-Sharpening 15-Piece Knife Block Set with SharpINâ„¢ Technology automatically sharpens its straight edge blades every time you use them. Made with fully forged, high-carbon German steel blades designed for optimal edge retention, this versatile 15-piece set includes everything you need for chopping and cutting jobs large and small. A full tang design provides excellent balance and superior strength.7806279816853062690