Kids love to play with glow in the dark toys and what far better approaches to allow them do that then using the star explosion glow in the dark system. The system comes with much more than 500 pieces that glow in the dark and stick to just about any surface. 1 in the most beneficial ways to make use of this system is to setup the stars, asteroids, comets and galaxies for the walls and ceiling in their area. The items are charged by leaving the lights on for a brief whilst in the area.