Glip 2-Piece Ceramic Knife Set, Includes 5-Inch/8-Inch White Blade with Black Handle Set of 2 pieces ceramic knife; include 5-inch slicing and 8-inch chef's ceramic knives; black handle and white blade Stay sharper longer: hander and shaper than steel; 2nd hardest material ranked after diamond, retains its sharpness about 10 times longer than steel Rust resistant: no metal, so it is resistant to acids, germs, oil and will never rust; fruits and vegetables do not turn brown while being cut No metallic taste or smell: ceramic material keeps the blade from transferring odors from one food item to another; does not alter the taste of food Light weight: about one third lighter than steel