This is an item of stationery (paper or writing goods), or other small merchandise such as good-luck charms, mascot straps, et cetera.
If you (or someone you know) is cosplaying Rin Natsume from "Little Busters!" anytime soon, you need this set! You get a pair of pleasantly furry cat ears, mounted on combs to stay securely in your hair, and a bell with attached white ribbon on a bobby pin. (The wig shown is not included.)