Knife sharpener, Japanese ceramic grinding wheel, iron with diamond coating, 3 openings, compatible with all knives without teeth, non-slip feet, black The pull-out knife grinder with three openings in the Tefal Ice Force series is an important kitchen tool for easy maintenance and repair of knives in stainless steel for optimal cutting results. Start with opening 1, where the iron with a diamond coating repairs and straightens the knife blade so that the insert is restored. Then proceed to opening 2, where a Japanese ceramic grinding wheel further straightens the blade and polishes it. Finish with opening 3, where ceramic irons remove any remaining burrs. The user-friendly design has non-slip feet that provide safe and stable use, while a holster from which the knife sharpener is pulled out allows for compact storage in the kitchen.