Bits and Pieces - Celtic Compass Glow Garden Stone - Decorative Stone for Your Garden or Lawn - Beautiful Glow-in-The-Dark Stone Makes Great Garden Art - Garden D&eacute;cor Place our Celtic compass garden stone in a sunny spot to charge the phosphorescence. Enjoy a beautiful glow-in-the-dark star at night. A striking piece of garden art. Made of polyresin. Measures 10" in diameter.