This is a ruler set from the JAXA Space Education Center. It includes a straight ruler, protractor, set squares, and a bookmark, all incorporated into a plastic sheet and designed to be separated and used. It's a rare item, unique to JAXA, featuring illustrations of satellites, rockets, and space scenery. It's very thin and doesn't take up much space, making it convenient to carry around, but it may not be very durable due to its thinness. Shipping will be in an envelope and delivered via postal mail.