Product name Professional Pre-set Rod Knife Sharpener Introduction This innovative sharpening system features a solid bamboo base, wide hand guard and an integral snap-in rod storage under the base. It comes with 2 medium grit and 2 fine grit (for a highly sharp edge) 9" alumina ceramic rods. Features 1. Four 9" alumina ceramic sharpening rods. 2. Sharpens and polishes. 3. Pre-set rod angles for a precision edge 18 and 22 degree. 4. Convenient rod storage. 5. Wide hand guard for safe sharpening. Use & Care • Turn the bamboo block and take the ceramic rods out and put them in the pair of holes. • Place your knife blade on the inside of the left rod about 1/2" from the top of the stone. Hold the knife at a 90-degree angles to the base. • Pull the blade down and across the ceramic rod starting from the back of the knife blade to the tip of the blade. Repeat this action for about 8-10 strokes. • Repeat this stroke on the inside of the right rod to sharpen the other side of your knife until your knife is sharp. Caution Please be extremely cautious during the sharpening process to prevent any injuries.