2-Stage / Hand Held / Sharpens Dull Blades / Non - Slip Rubber Feet / E - Z Grip Handle / Easy to Use / Coarse and Fine Ceramic # The Wusthof 2-stage Hand-Held Santoku Knife Sharpener features a Coarse Ceramic Stage that sets the edge and a Fine Ceramic Stage that finishes the edge. This knife sharpener has non-slip rubber feet along with an E-Z grip handle. It is so easy to use just place the sharpener on a flat work surface. Hold the sharpener with one hand and the knife handle with the other. Insert the knife blade fully into the slot at a 90-degree angle to the sharpener. Apply moderate downward pressure on the blade while pulling the knife toward you through the appropriate notch. Repeat this action, always pulling the blade from heel to tip (never back and forth) through either ceramic notch. A reasonably sharp blade may only require light honing in the fine ceramic notch. The first stage ceramic is intended for dull edges that require more maintenance. A must have in all kitchens. Hand held # 2 stage # Coarse Ceramic Stage that sets the edge and a Fine Ceramic Stage that finishes the edge # Non-slip rubber feet # E-Z Grip Handle # Size: 8 x 3 x 1-1/4-inches