Melange 10-Piece Ceramic Knife Set with Black Handle and Black Blade Includes 6-inch chef's knife, 5-inch Santoku knife, 5-inch slicing knife, 4-inch utility knife, 3-inch pairing knife and 5 knife covers Knives do not rust or leak/transfer metal ions from long-term exposure to moisture, oils and acids in common foods 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); comes with ergonomically designed abs handles 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