Muji Aluminum 15cm Ruler. This is from my student days collection, but I'm selling it as it's been sitting in a drawer. Unlike the currently sold version, this is a discontinued model with black printing. Please note that, as shown in image 2, there are scratches on the back (including fine scratches) that appear to have occurred during storage, and it has been stored at home for a long time. Thank you for your understanding and purchase.