Wusthof’s Classic cutlery line consists of ultra-strong knives made of a single piece of high carbon steel. These knives have polypropylene handles with a traditional triple riveted design. Polypropylene is a sanitary synthetic material that resists the growth of bacteria. Full tang and double bolster features add stability and balance when cutting with these knives. Each blade is measured and then sharpened to the optimal angle for that particular blade using Precision Edge Technology (PEtec). PEtec produces a long lasting sharpness Wusthof customers have come to love.