The ergonomically designed handles provide a comfortable, safe grip as well as a perfect balance between the blade and handle. Blades are individually hand sharpened and tested for quality assurance. Set includes a lockable aluminum case. Normal cleaning, hand wash in warm soapy water with a nonabrasive sponge or cloth. They highly recommend hand washing your knives in non-lemon detergents. Your high quality knives should not be soaked for long periods or submerged for cleaning. Frequent and prompt cleaning of your knives after every use with non-caustic soaps and towel drying will ensure the beauty of your BergHOFF high quality knives for years to come.