We are proud to be an authorized Canadian dealer for these incredibly high quality Japanese water stones! Shapton is world famous for making stones with extremely consistent and dense grits, meaning your stones will cut fast and clean and will be very long-lasting. These are all splash-and-go, so no soaking is needed, so you can get working quickly. These GlassStone series are unique in that the 5mm thick abrasive material is bonded to a 5mm thick piece of glass so the whole unit is strong, extremely flat, and quite heavy. These are very unique and interesting stones -- give one a try today!