http://search.cartserver.com/search/...9ries&go=GO%21
this is the best system you can get to sharpen your knives period
those other things eats the metal off of the edge of your blade
opposed to resharpen the original edge without removing massive amounts of the blade every time you sharpen it.
Iow the knife will last a lot longer using this type of sharpener
you can normallt find them at Lowes, Home Depot, Ace, BPS and Cabelas
comes complete with instructions.