"Mountainside" Glow Canvas Wall Mural ~ 8 feet wide by 12 feet tallThere is no image on this canvas in the light. The phosphors that I use can only be seen in the dark. They glow just like the real stars. The "black" portions of the wall are simply areas that do not have glowing phosphors! This canvas mural glows very brightly because of the amount of rare-earth phosphors used to create this glowing illusion.