Melange 10-Piece Black Handle and Black Blade Ceramic Knife Set with 2-Tier Wood Universal Knife Block Includes 6" chef's knife, 5" Santoku knife, 5" slicing knife, 4" utility knife, 3" pairing knife, four 4" steak knives and wooden 2-tier knife block 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 Universal block can fit knives with blades up to 8"; the food-grade plastic sticks conforms to shape of knife without chipping or dulling the blade Ceramic knives are not dishwasher safe but are easy to clean as they are not stained or affected by substances such as salts, acids and juices