This is a 12cm ruler from Gakken's "NEKO NEKO KONEKO" series. It's from about 40 years ago. I took it out of the bag the other day and used it a little. I made a black dot with a permanent marker on the left edge, but other than that, I think it's in good condition. Please understand that this item has been stored at home for a considerable amount of time, and consider purchasing it if you are okay with that. Please also read my profile. Thank you very much.