This is a Masamoto unagi-saki (eel splitting) knife. The blade length is approximately 15cm. It is single-edged. The steel type is unknown. The handle is a buffalo horn handle. It has the "Hide" stamp on the back. This is a Masamoto unagi-saki (eel splitting) knife. The 15cm blade length makes it an easy-to-use size. It has been restored and mirror-polished because there were many sharpening scratches and rust, so some minor scratches remain. The buffalo horn on the handle is slightly faded. Recommended if you don't mind. Both the cutting edge and the flat surface are almost mirror-finished. It is also lightweight and generally clean, so I think it can be used for a long time. Recommended for professionals and general users due to its size. It has been finished with a Kitayama 8000 grit stone, a Shapton 12000 grit stone, and a natural whetstone. It is in a very sharp condition, so it can be used immediately. ● Size: Blade length approx. 150mm ● Thickness at thickest point: approx. 4.4mm ● Overall length: 240mm ● Weight: 84g #knife #eelknife #Masamoto #15cm