Hareline Atomic Glow 1/16 inch Strips - Stretchy material that when exposed to sunlight, UV light or a LED light source for 10 -15 mins resulting in a sustained glow for more than 8 hrs. ATG1 - Fl. Blue ATG2 - Fl. Green ATG3 - Fl. Orange ATG4 - Assortment Pack (all 3 colors)