Planet Dog Orbee Tuff Luna Ball Toy is a celestial offering from the Cosmos collection. Orbee Tuff Cosmos are stellar orbs floating around your pup's Slobber System. Like the moon, Luna glows in the dark, perfect for the darkest nights. Luna is sized for any pup in the spaceship. With the Cosmos line, the sky's the limit! Luna is rated 5 out 5 chompers on Planet Dog’s durability scale, making it perfect for tough chewers.