These traditional Japanese knives feature a lightweight nonreactive ceramic blade that holds its edge ten times longer than steel. Blades are made from zirconium oxide, a state-of-the-art ceramic material that holds a razor-sharp edge ten times longer than steel. Designed to slice, mince and dice fresh produce and boneless meats with unrivaled ease and precision. Nonreactive blade won't discolor foods or affect flavors. Resin handle is contoured for a comfortable grip. Set includes 3" paring and 5 1/2" santoku.