The tungsten steel knife sharpener is the ideal sharpening tool for your kitchen. It's easy to use and comes equipped to sharpen your assortment of Seido™ knives. It has 3-stage sharpening settings for both fine and coarse grinding. It will not disappoint and with just a few strokes you can get and keep your knives sharp and ready to cut. We’re revolutionizing the art of knife sharpening, with our 3-stage easy to use knife sharpener! 1st stage, diamond (fine) sharpening repairs and straightens damaged blades 2nd stage, tungsten steel (coarse) sharpens to restore its V-shape edge. 3rd stage, ceramic (finish) fine tunes for a clean polish finish. How does it work? Easy to use Whether you’re right or left-handed, the ergonomic handle allows you to restore your cooking knives in a matter of seconds! Simply place the blade in each of the slots and gently pull the knife through a few times for fast, effective sharpening. Product Features 3-stage sharpening tool: diamond, tungsten steel and ceramic slots Compatible with all SEIDO products and your existing kitchen knives. Safe and easy to use. The fitted rubber base provides maximum stability with a long handle to keep your hand at a safe distance from the blade Durable and superior quality, made with strong ABS plastic.