This is a German-made NUK Hello Kitty baby bottle purchased in Taiwan. It's rare because it's not available in Japan! Rest assured, it's an officially licensed Sanrio product. The baby bottles are made of plastic and come in a set of four: two small (150ml) and two large (300ml). They come with 0-6 month nipples. You can replace them with wide-neck nipples like those from Japanese brands like "Bonyu Jikan" (Mother's Milk Realization). I'm also selling other Hello Kitty baby items, such as a milk case, pacifier, and pacifier holder. (*^◯^*) Instant purchase is welcome! Hello Kitty Type...Baby Bottle