Natural whetstone of french Pyrenees with 2 grains :
1 abrasive grain for sharpening the blunt edge (once your Laguiole knife no longer cuts)
1 fine grain for maintaining the fine edge (when your Laguiole knife still cuts). )
The whetstone need to be soaked in water for 10 minutes before sharpening your Laguiole knife
This box is ideal for folding Laguiole knives up to 12 cm handle lenght.Internal dimensions : length 12 cm x width 3.5 x depth 2
Warning, this box is not suitable for the following handles: hunting knife / wider handle / double-plates.