This is a tatami knife or replacement blades for a tatami machine. There are some chips and rust. Please check the photos! I don't know the details of how to use it. The case is from Kodama. There are dents and rust. I plan to pack it in this case, stuff it with newspaper, wrap the outside with bubble wrap, and ship it. Kodama 9 blades 15cm ? 1 blade 15cm Kimura 3 blades 22cm Kanefusa 1 blade 27cm A set of metal tools with a variety of blade shapes. - Quantity: Contains blades of various shapes - Accessories: Comes with a metal case - Blade shape: Mixed curved and straight blades - Blade condition: Shows signs of use, but generally good Thank you for looking.