Richardson Sheffield 5-Piece Block Knife Set, Kyu Ice X50CrXcr0MoV15 High carbon stainless steel, slow to blunt and easy to sharpen Japanese Design flourish with British steel technology making them super sharp but highly resistant to blunting and rusting Integrated handles utilizing non slip technology and perfect weight distribution Best of both worlds - specialist Japanese style knives with Western kitchen essentials 30 Year manufacturers Guarantee