This one of a kind knife sharpener features the following: Three-stage grinding system: 3-in-1 High-Efficient Sharpening system. It includes a Sharpening, Honing, and Polishing system which renews blunt blades. The removable system can be quickly cleaned. Easy to use: Suitable for both right and left-handed people with a simple and easy operation system. It is safe, durable, ergonomic, and has a locking pad which provides a pleasurable experience.