There is nothing quite like putting a razor-fine edge on your knives with a Zwilling J.A. Henckels #1000 grain glass stone. This carbon-steel whetstone was made in Japan and puts a very fine edge on your blades. It is safe for all knives except for ceramic knives.
Zwilling J.A. Henckels provides a warranty on their #1000 glass stone guaranteeing the material construction and craftsmanship of the whetstone.