Melange 5-Piece Ceramic Multicolor Handle Black Blade Knife Set Includes - 6" Chef's,5" Santoku, 4" Utility, 3" Pairing, Acrylic Holder; All knives have multicolor ABS ergonomic handle Knives do not rust or leak/transfer metal ions from long-term exposure to moisture, oils and acids in common foods; Knives are non-reactive to food Significantly sharper than steel knives; Ceramic blade preserves its sharpness 8-10 times longer than traditional steel blades Lightweight and comfortable to use (weighs approx. half of an equivalent metal knife) Not dishwasher safe - but ceramic knives are easy to clean as they are not stained or affected by substances such as salts, acids and juices