Kyocera Ceramic FK Black Anthracite Knives, Carbon infused ceramic black anthracite blades - 30% harder than white ceramic blades and hold their edge for longer, Ergonomic handle - easy-grip waterproof handle for better control while cutting and slicing. Ultra sharp long life blade holds its edge longer than steel. Stain and rust proof - impervious to the food acids which discolour steel products. No metallic taste or smell - maintains the fresh taste of food; will not brown fruits and vegetables. Easy to clean non-stick ceramic blade. Easy to use - light weight and perfect balance make Kyocera ceramic knives a pleasure to use. Kyocera 5 Year Limited Guarantee.