The Kuhn Rikon Citrus Knife is the all in one citrus tool. Now you can prepare citrus in the kitchen, at work or a picnic. You no longer need a separate zester, knife and scorer to prepare oranges, grapefruit, limes, tangerines or any other of your favorite fruits. The blade is ideal for cutting sections of the fruit and it folds for safe keep. The scorer makes peeling a rind easy and the grater finely grates zest for whatever you desire.