The crock sticks are fine grit ceramic rods that fit into a wooden or plastic base and form a V at about a 22 degree angle. They are excellent for final edge polishing and touching up, but for removing more metal they will take forever. I bought a five stone deluxe Lansky kit a few years back, with the conventional material hones from extra coarse to superfine. After I got into buying knives with harder steels, I found that it was MUCH easier to reprofile and sharpen with the diamond hones. I think most people would be much better off to go straight to the diamond hone set, which comes with the coarse, medium and fine grit hones, and a small ceramic crock stick to put the final edge polish on with. The fine and the superfine hones in the deluxe kit I still use, but the diamonds supplanted the rest of the stuff, and I would have actually saved money in the long run had I just purchased the diamond kit to begin with. You can get by with freehand sharpening and good synthetic stones rather cheaply, but the Lansky setup helps maintain a precision bevel to help keep your sharpening jobs from looking so amatuerish. If you shop around, you should be able to get both the diamond Lansky kit and a good Smith's or Lansky crock sticks set for less than $60 total, and you will have something that will sharpen your knives for a very long time without having to add supplemental gear. One other option would be to buy a DMT benchstone; a large diamond benchstone with the opposing sides being coarse and fine diamonds will handle all sharpening needs for many many years, BUT it takes more skill to freehand sharpen than with the guide rod systems. IF you are planning on sharpening knives with hard modern steels that are rockwell C hardnesses greater than about 56-57, I would seriously recommend the diamond hones, regardless of brand. Pretty much anything with D2, ATS 34, 154 CM, VG 10 etc, will be pretty hard. Most 420HC, 1095, 0176C, etc, can sharpen fairly well without the diamonds, but the diamonds give you speed. A lot of people do seem to like conventional stones, but I have really enjoyed the guide rod diamond hones, for both speed and ease of use. EDIT to add, after reading the above post, you can avoid the marking up of the knife with the clamp simply by taping the blade with nothing more than masking tape, saves the mars and grips in the clamp better.