Suehiro Debado 600 Grit Ceramic Stone. These stones are their high quality professional line of stones and they make them with a special curing process using small kilns and high heat which adds stability and long lasting stones that won't crack and can be soaked for long periods of time. They also have a side surface and a no-slip base and include a nagura for cleaning the stone and a plastic storage case.
Stone Size: 205×73×23 mm (8×2.8×0.9'')
Storage Case: Plastic
Stone Holder: Base Included
Made in Japan