Wusthof Two Stage Hand-Held SharpenerThe WSTHOF Two Stage Hand Held Knife Sharpener is safe and easy to use. Place the sharpener on a flat work surface and hold the E Z grip handle 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 and pull back a few times to sharpen. After setting the knife's edge with the carbide side, use the unit's ceramic side to nicely finish the edge. This sharpener is designed to