The Fallkniven DC3 whetstone consists of a fine diamond stone (25 micron) and a very special ceramic stone, made of synthetic sapphires. The advantage of these materials, is that even once they wear, they will still keep their flat shape. This is important when you sharpen your knife, and since these materials are the hardest we know of, they will sharpen any steel, even extremely hard powder steels.
You don't need any lubrication for these stone but now and then you should consider cleaning them with warm water and liquid soap. The stones may feel a bit coarse at the start but will become smoother/better after some use. A leather pouch is included.
Dimensions: 25 x 75 mm
Weight: 38 g