Blue Glow Rocks (XL)
At roughly 1/2" - 1 1/2" inches in diameter, these blue glow in the dark rocks make a suitable aggregate for any project. Perfect for indoor or outdoor uses, these rocks add a unique flair to your aquarium, terrarium, flower pots, or landscaping. The improved formula of glue, crushed glass, and glow powder guarantee an all-night glow that will not fade or lose color. They can be charged by any light source and are also reactive to UV black lights. Glow rocks come pre-tumbled with no sharp edges. Available in 3 colors.