See the stars! Bring the wonder of the night sky to your home or office with Running Press' charming tiny Planetarium. Learn about 12 Hellenistic constellations with this miniature star projector. This 3" wide by 3.75" tall kit contains a 3" star projector with a disk including 12 Hellenistic constellations and a 48 page illustrated mini book about the mythology and lore behind each constellation. Requires two AAA batteries (not included). Recommended for ages 6 and older.