Rosewill 12 Piece Stainless Steel Triple Rivet Knife Cutlery Wooden Block Set &ndash; 8&rdquo; Chef knife, 8&rdquo; Bread Knife, 5.5&rdquo; Santoku Knife, 4.5&rdquo; Steak Knife, 3.5&rdquo; Paring Knife, Sharping Steel, Wooden Knife Block, RHKN-13001 VALUE SET - 12-Piece set includes multiple models of the items: 8" chef knife 2.0 mm thickness, 8" bread knife 2.0 mm thickness, 5.5" Santoku Knife 2.0 mm thickness , 3.5" paring knife 1.6 mm thickness, 4.5" steak knife 1.6 mm thickness (great quality compare to others which only have 1.5 mm thickness). Also includes Sharping Steel and Butcher Block for convenient storing of the knives. The hollow ground blade holds an extremely sharp fine edge. Balanced Stainless steel blades thickness for precision and durability BLADES MATERIAL - Knife Blades are made from 420 grade 3Cr14 Stainless steel. The following formula is a break down in the steel: ~ 13% chromium and 3% carbon. It has a HRC of 52-55 making blades relatively soft. Tarnish-resistant, rust-resistant, and easy to clean Stainless steel blades HANDLE MATERIAL - Polypropylene plastic is used on handles which possesses high flexural strength because of its semi-crystalline nature. It is very resistant to moisture. It has good chemical resistance over a wide range of bases and acids. It possesses good fatigue resistance. It has good impact strength. It has a good resistance to electricity and is thus a good electrical insulator. Provides all the necessary knives for any kitchen task from slicing, dicing and chopping. All knives store safely in the wooden knife block. Note: Hand wash is recommended