Select by Calphalon Self-Sharpening knives stay sharp for a lifetime. The 15pc cutlery set features SharpIN™ technology with built-in ceramic sharpeners that automatically sharpen straight edge knives every time you remove them from the block. Knives feature high-carbon, no-stain steel for lasting durability. Handles feature a full-tang design for strength and balance and the ergonomic design allows for effortless cutting. Knife handles are also labeled for easy identification in the block. The 15pc set includes a wood block and a great selection of essential knives for chopping, dicing, slicing and more, as well as eight steak knives. Select by Calphalon Self-sharpening knives have a full 10-year warranty.