This is an item of stationery (paper or writing goods), or other small merchandise such as good-luck charms, mascot straps, et cetera.
Ultra-high quality sticker of Ruri from Nadesico. This is made of the same sticker material that is used to mark fighter aircraft of the JASDF (and produced by the same company), so you can be sure this is suitable for use on external surfaces, such as your car, etc. W152xH190mm.