This is a hand shredder from MUJI. I bought it about 7 or 8 years ago and used it for about 3 years. After that, I didn't use it much, and for the past two years, I haven't used it at all because I bought an electric shredder. It was stored in a drawer in the back of a closet, away from direct sunlight, so there is almost no discoloration of the plastic. However, as you can see in the photos, there are some areas, such as the grooves and edges, that have yellowed slightly. (The yellowing appears quite strong in the photos, but in reality, it's barely noticeable.) It's still in usable condition, so I'm listing it in case anyone is looking for one.