Ginsu Kotta Series 5 Piece Prep Set with Black Block...Ginsu Kotta Series blades are made from commerical quality Japanese Stainless Steel, known for it's strength and durability. Serrated edges ensure a lifetime of use without needing sharpening. Each handle is beautifully shaped and ergonomically designed to fit smoothly into your hand. Japanese steel tang extends into the handle. Set Includes: 6" Chef Knife, 5" Santoku Knife, 5" Utility Knife, 3.5" Paring Knife, Black Storage Block.