Glow in the Dark Star Set to create the most realistic night sky ceiling imaginable! Hand painted tiny decals are invisible by day, but at night the magic begins. All night gentle Glow, Blue, Aqua, Yellow. Every star has a hazy halo for an amazingly realistic effect. You'll think someone cut a hole in your roof. 207 Halo Star Kit: Your Star set comes in 4 Sizes and 3 Color Hues Hand painted by Night View Art Stickers are tiny decals - they are removeable so are safe for apartments, dorms and barracks rooms. By Day the stickers will blend into white, or lighter ceiling and wall colors. No special lighting required, just stick them up and let the natural daylight charge them, they will glow gently and beautifully all through the night. For an out of this world colorful glow, use a black light! How may kits do you need for your ceiling? 1 Kit (207) will cover an area over your bed - about 16-20 Square feet. 2 Kits (414) will cover a larger area over your bed or a very small bedroom ceiling. 3 Kits (621) will cover most smaller to medium sized bedrooms (up to 120 sq ft) 4 Kits (828) will cover most medium to large bedroom ceilngs (up to 130 sq ft) 5 kits (1035) will cover most large bedroom ceilings with stars. Double the number of kits for a very dense, bright star field, or to add special effects like star clusters, Milky Way, Constellation layouts, or to bring the star scene down the walls. NOTE: Not for popcorn ceilings. Not for black or really dark ceilings