Arcos 4-Inch Paring Knife, 6-Piece Set Set of four 4-inch paring knives with NSF approved black handles Made in Spain by Arcos, a leading European knife manufacturer with traditions stretching back to 1745 Arcos exclusive Nitrum stainless steel formula enriched with nitrogen for added hardness and long-lasting sharpness Ergonomic handle resistant to slippage, impact, and high heat (up to 260 degrees F) Dishwasher safe, hand washing recommended