Here are a few things you should know about ceramic sharpening-rods sets. First, there are some truly lousy ones on the market. The two good ones that I know of are the Lansky Kitchen Combo and the A.G. Russell Ceramic Sharpener. The Lansky comes with three sets of rods ranging from coarse through fine and A.G.'s is fine only. Fine is all I ever use, and I don't believe you can get a shaving edge without it.