This is a case for koto bridges, familiar to koto players. Size (outer dimensions): Approximately 24cm wide x 7cm high It hasn't been stored in a bag or anything, and has been kept at home for a long time. There are no noticeable scuffs on the corners or stains inside. I am an individual seller, so If there is any missing information or you have any questions, I will add photos or take measurements. Please feel free to ask. Please confirm everything before purchasing, and cancellations after purchase are not accepted.