Vibe Lettuce Knife (Sprout Color) Enjoy crisp, bruise-free lettuce for salads, sandwiches, and more with this easy-to-use lettuce knife. Slice, chop, and mince delicate lettuce leaves and heads with the knife's serrated nylon edge. Cut completely through most heads of lettuce in a single stroke with the 8-inch blade. Easily spot the knife in cluttered drawers with its bold green color. Great for other foods like brownies, clean the knife easily in the top rack of the dishwasher.