Easy-to-use and effective knife sharpener for every user, whether professional or amateur. An innovative knife sharpener with two stages, depending on how much the knife has lost its edge.The first stage (Coarse) with a diamond sharpening surface is for worn knives, while the second stage (Fine) with a ceramic sharpening surface is for regular/daily sharpening of your knives, as well as for passing the knife through the ceramic surface after the first stage. The ergonomic handle and non-slip base ensure safe use. To achieve the best possible result, the knife blades should be cleaned before and after each sharpening process.