Cutting your lettuce and preparing your salad with a steel knife can take what was going to be an appetizing meal and turn it into a browning mess. With a plastic lettuce knife, however, you can help prevent oxidation and keep your salad looking fresh. These knives are a great solution for any kitchen, including schools, restaurants, and houses that work with lettuce on a daily basis. There are 144 assorted color knives, individually packaged, per case.