This is a prize from a crane game. It's unopened, so I haven't been able to confirm the size, but it's a bath towel from an Anpanman movie from several years ago, featuring Princess Vanilla. It has been stored in its bag without being used. Even without taking it out of the bag, it looks large, so I think it's a bath towel. I searched online and borrowed an image of what I believe is the design, which is included as the third image. Please be aware of this.