Wusthof Gourmet Ten Piece Block Set Block dimensions: 4.75W x 15.5D x 10.25H in. High-carbon stainless steel blades Highly durable synthetic Polyoxymethylenehandles Tempered to 56 degrees Rockwell 13 slot block Laser cut stamped from one piece of specially tempered high-carbon stainless steel. Specially developed synthetic handle, designed for comfort and control. Full-tang handle (for all blades longer than 12cm).