Kai Corporation KAI Combination Sharpening Stone Set Made in Japan AP0305 (#400 & #1000)

The underside of the tray has synthetic rubber ribs, making it non-slip and allowing for stable work. It has grooves to collect water (sharpening liquid) from the whetstone, so it won't make a mess in the kitchen. After use, the whetstone can be left in the holder to drain and dry. Manufacturer model number: AP-0305 Size: 254 x 95 x 56 mm Weight: 735g Material: Green carbide (abrasive, equivalent to #400/1000 grit) Country of origin: China