Wusthof channel knife is used to strip pieces of lemons or limes and also to garnish vegetables. The strip is larger and more dramatic than lemon or lime or orange zest. It can be used to decorate or to be candied. This citrus stripper is unusual in that the the channel is at the end of the tool rather than the side like the one that comes on a zester. A channel knife or citrus stripper is a tool for professional, well-equipped kitchens and very handy in the bar. In a martini, it is what is called a twist of lemon. Very James Bond! Made in Germany.