Due to long-term storage, there is rust on the blade (see photo 8). *Please note that returns and exchanges are not accepted, so please purchase only if you understand this.* The most common stainless steel material is molybdenum steel, and all others are high-grade materials with excellent sharpness and durability. Gin-san steel has both sharpness and durability, and is a rust-resistant material, making it highly regarded by chefs. The handle uses a buffalo horn octagonal handle, making it very easy to use and designed to fit comfortably in the hand. The octagonal handle is easy to use, so much so that chefs say it fits well in their hands. 【Sensuke Santoku Knife】 ■ Blade length: 165mm ■ Material: Gin-san ■ Handle: Buffalo horn octagonal handle ■ Blade: Double-edged (right-handed/left-handed) *Please note* ・Although it is made of rust-resistant stainless steel, after using the knife, remove any dirt and thoroughly wipe off any moisture. Leaving moisture or dirt on the knife 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 and shells, as this may cause chipping, breakage, or blade breakage. Thank you for viewing.