Transform your ceiling into a starry sky. This kit comes with 150 stars in a galaxy of sizes and safe, re-useable adhesive putty. A star chart is included, so you can create classic constellations or make your own astronomical arrangements. Whatever twinkles your star. A special phosphorescent formula gives these glow-in-the-dark stars a life that's almost as long as the real thing: they're rechargeable so they won't wear out. Just expose them to light and they're ready to glisten once more.