Ice Bear Japanese Nagura Stone For cleaning glazed surfaces Also suitable for creating slurry prior to honing Equivalent of 8,000 gold stone Size: 70 x 20 x 23mm Used for cleaning a glazed surface or creating a slurry prior to honing on finer stones, thereby speeding up the process. These artificial Nagura stones are the equivalent of the 8,000 gold stone and therefore there will not be a problem with particle contamination when used on other grit stones. Size: 70 x 20 x 23mm