Perfect for everyday kitchen use, the carbon paring knives will stay extra sharp for years to come. Hand wash, and air dry to clean. Also, it's important to keep carbon steel well-oiled so it avoids corrosion. Carbon steel holds an exceptional edge and is known for its long-lasting cut quality. The item includes a pair of two 4" paring knives. We recommend avoiding damp environments and drying the blade thoroughly and immediately after each use. It is not recommended to use carbon knives on acidic foods. Carbon steel will patina/rust if not cared for properly after each use.