This compact DIAMOND sharpening stone allows you to tackle a variety of sharpening jobs like knives, garden tools, and more. Available in four different grits: extra-coarse, coarse, fine, and extra-fine. I used just the fine and ultra fine so that I never had a dull knife while skinning numerous moose, caribou, beat, sheep, and goat as well as the occasional muskox and bison available to me in my 50 years in Alaska. HUNTED A LOT! The folding design makes this sharpener easy to keep close at hand in your tool box, backpack, or pocket. Made in the USA. On line I find $22 to $30 each plus ship, etc. Just 1 each fine and extra-fine left from the original 4 each, will only sell as both for $20 and MINE ARE RIGHT HERE TO PICK UP TODAY... The last picture shows 2 I never owned but are obviously for sale out there somewhere...:-) NO knives are in this picture or for sale. These will sharpen kitchen and pocket knives as well.. Cash only, trades/ $ offers not wanted nor accepted, must take possession of the item in person, my general availability is from 9am to 7 pm m-fri some Sat and Sun. Please text when possible, it is as the quickest acceptable method of communication.I rarely answer the phone on #'s I don't recognize. I always answer texts.... I LIVE IN MID MERIDIAN SO AM EASY TO GET TO OFF USTICK. Name: Bob