We reintroduced the amazing natural stones from the southeast of Belgium back into the US about 16 years ago through several serendipitous occurrences. The Belgian Blue and the Coticule are rooted in history and were recorded by Pliny the Younger when the Roman army stopped there for stones on the way to taking London for the tin mines in the Bronze Age. The coticule has been the choice of barbers for hundreds of years for honing straight razors. We use them ourselves every day while honing razors for customers. I keep a natural double Belgian stone in my medicine cabinet to maintain my own straight razors.