I love my falkniven daimond stones and they put a fantastic edge on my Maxamet knives. This little sucker fits right into the tool bag or pocket, and really does the trick on smaller knives. It does break in over time, gradually becoming smoother on the daimond side. But it can still reset an edge on just about any steel I own. I particularly like how easy it is to sharpen maxamet knives when using diamonds. I own a couple of DMT stones also, but none are as small and ready to go as this little stone. I also have the larger equivalent stone. I would prefer the ceramic side be the finer white falkniven ceramic material, but the black side can still be useful. This is a great stone for the money and I would definitely recommend it to others.