Welcome to Japanny - Best Japanese Knife!
This item can be used to remove a rust and/or stain. Sometimes you may want to use this without water or with detergent. To summarize, it will help you a lot in your daily life not only when you use sharpening stone.
Size:38mm x 63.5mm x 12mm
It usually takes 2 –3 weeks for us to restock should this item is not available.