Introducing the Ninja Foodi NeverDull Premium Knife System, the premium knives that stay razor-sharp for over 10 years. This versatile set includes forged German stainless steel blades that are durable and perfectly balanced for comfort and control. With only a few swipes of the built-in, foolproof sharpener, this all-in-one system maintains the superior sharp edge you crave use-after-use.