Upgrade 4 in 1the sharpener has 4 compartments, including one for scissors. 3 levels of manual sharpening with notches based on diamond, tungsten and ceramic, suitable for all ceramic and stainless steel knives to give it its sharp profile after sharpening. Good QualityOur knife sharpener knife is made from strong, and eco-friendly materials to make it durable. Equipped with ergonomic ABS plastic handles, non-slippery, it allows you to sharpen coarsely, then more finely with these different stones. Easy to useIt is light and handy, rubber is placed on base to prevent it from moving and remains stable. Very practical, convenient to use, suitable for both right and left handed people, takes up little space. High SafetyErgonomic design makes sharpening much safer. Good grip which allows you to sharpen your knives while keeping your fingers safe. The sharpener is an ideal product to ensure the longevity of your knives, a great ally.