This stuff glows like nothing I have ever seen. It just sucks up the sunlight and brilliantly radiates it back to you. In the light it is ghostly pale and in the dark it's a radioactive green. Great fun day or night.
Made in the USA.
Copernicus Toys for Curious Minds:
Copernicus Toys is a family-run specialty toy and gift brand. We design activity kits, science kits, games, and novelty products to cultivate interactive discovery and exploration for all ages.