About this item. Upgrade 4 in 1l sharpener has 4 compartments, one of which is 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 is made from of solid materials, and respectful of the environment to make it durable. Equipped with ergonomic, non-slip ABS plastic handles, it allows you to sharpen coarsely, then more finely with these different stones. Easy to useIt is light and handy, rubber is placed on the base to prevent it from moving and remains stable. Very practical, easy to use, suitable for both right- and left-handers, takes up little space. High SafetyThe ergonomic 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. Service 100% satisfactory service. We guarantee you'll really love our 4-in-1 sharpener. However, if you're not 100% satisfied, we'll give you your money back instantly. we have a 12 month replacement warranty, just email us and we'll get back to you within 24 hours.