The N1 Series is a story of balance, precision, and great design. The ideas presented are conversations in bold contrast and the continuous journey between subtle and sharp. A minimal, sleek hollow-handle design ensure these knives are well balanced, both aesthetically and in the chef's hand. Patented design focuses on the unique all-metal structure and ergonomic handle Patented foldable knife blocks, made from high heat oxidized ash wood, no painting, no glue Full tang forged from X50CrMoV15 German Steel with HRC 58 +/- 2 on the Rockwell Hardness Scale NSF International Certified, limited lifetime warranty 4-Piece Set Includes: 6" Chef's Knife 5" Serrated Utility Knife 3.5" Paring Knife Folded Block