Regarding the Kitchen Knife: Originally a double-edged Nakiri knife, the blade has been modified to a single-edged design due to its single-plate construction. The knife has been sharpened to feel closer to a single-edged usuba knife than a typical double-edged Nakiri, making it easier to chop vegetables. The size is the standard 5.5 sun for a Nakiri knife. Regarding the Blade: The blade is sharpened as a right-handed single-edged knife for ease of use by right-handed individuals. Regarding the Steel: The exact steel type is unknown. Based on the feel during sharpening, it is likely a general carbon steel. It doesn't feel as hard as white steel and gives a relatively easy-to-handle impression. *This is only reference information based on the feel during sharpening.* Regarding the Handle: Due to inventory constraints, a handle for an unagi (eel) knife has been attached. There are no practical issues, and it is securely fixed. This combination of a single-edged Nakiri knife with an unagi knife handle is likely a unique specification. *Please purchase only if you understand that this is a used and reconditioned item.* Shipping: The blade will be protected and carefully packaged with cushioning material for shipping.