This GLOW IN THE DARK Children's Throw or Blanket was made by one of the most highly respected manufacturer's of top quality bedding in the US - Duke Imports of Angola, IN. The Constellations & Stars trademarked design (called Interstellar Glow) is part of their Regal Comfort label. This super soft and luxurious throw is made of 100% EF Velbo Microfiber Polyester. The GLOW IN THE DARK feature is simple - just expose the patterned side of the throw to ample artificial light or direct sunlight to charge it up for a beautiful glow at night time. The longer it is exposed to the light and the more intense the light, the brighter it will glow! The throw is 50" by 60" in size and is machine washable and dryer safe.