The Fallkniven FS3 is not only fun to handle but these diamond and ceramic whetstones will create a sharp edge on any knife. Sandwiched layers of 25 micron diamond on one side and 1 micron ceramic on the opposite side create an excellent sharpening medium in the field or at home.
Now the neat part...this sharpener opens like an assisted opening knife with the push of a button! Be the envy of your friends when the sharpening surface pops into action. This high quality sharpener from Fallkniven measures 3.85" closed.