Wusthof Classic 7&rdquo; Hollow Edge Chai Dao Knife 8888-7 Forged from single piece of high-carbon stainless steel with a black polymer handle Made with Wusthof's Precision Edge Technology (PEtec) to create a blade that retains its edge 30 percent longer Stain resistant Hollow edge prevents food sticking Each blade is proudly and beautifully stamped with the Wusthof name