Kyocera’s traditional Japanese knives feature a lightweight non-reactive ceramic blade. Their blades are made from zirconium oxide, a state-of-the-art ceramic material that holds a razor-sharp edge ten times longer than steel. Advanced ceramic is second only to diamond in hardness, and these ceramic knives are designed to slice, mince and dice fresh produce and boneless meats with unrivaled ease and precision. The non-reactive blades won’t discolor foods or affect flavors. The resin handles are contoured for a comfortable grip. This gift boxed set features a 3” paring knife and a 5.5” Santoku knife. Kyocera offers a lifetime warranty as well as complimentary sharpening for life (nominal fee for shipping and handling).