Wusthof Gourmet 5" Santoku, Hollow Edge Tempered to 56 Rockwell Comfortable and highly-durable polyoxymethylene (POM) handle with a traditional look and feel, stickered with our red Trident logo Not dishwasher safe Incredibly sharp and easily maintained, laser cut blade. 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).