Rust is present on the blade due to long-term storage (photos 5, 6, 10, and 11). No Aoni (blue steel) stamp is present. *Please note that returns and exchanges are not accepted. Please purchase only if you understand this.* ■ Product Name: Yanagiba Knife ■ Material: Yasuki Steel, Blue Paper No. 2 ■ Blade Length: 270mm ■ Blade Type: Single-edged (right-handed) ■ Handle: Shitan Shinogi Handle By using Hitachi Yasuki Steel's Blue Paper No. 2, a high-grade blade carbon steel, the sharp cutting edge will last a long time. Although it is prone to rust because it is steel, it offers a cutting performance that cannot be experienced with stainless steel. The handle uses Shitan Shinogi, resulting in a beautiful Japanese knife. *Important Notes* ・After using the knife, remove any dirt and thoroughly wipe off any moisture. Leaving moisture or dirt on the blade can cause rust. ・Do not use in dishwashers or dish dryers. ・Do not use on frozen foods, corn, pumpkins, dried mochi, or hard ingredients such as bones or shells, as this may cause chipping, cracking, or breaking of the blade. Thank you for viewing.