Heavenly body zone with noctilucent methods " Star-Zone" First, You can not see the Star-Zone in the daytime. Just see the Star-Zone in the night as naturally. Certified by an Astronomical Observatory Association & Korea Ministry of Education, We have confidence in the products of technical and educational excellency. Available for decoration, sales promotion and present. it is very useful teaching tools to study a Star Chart.This is a luminous wallpaper with the abridged four-season constellation and galaxy printed on it. It has gained a patent right from 160 countries around the worldincluding South Korea, America and Japan etc.It doesn&＃39;t show much of its luminous propertiesin the daytime.However, once the night comes on, you can enjoy the real night sky on the ceiling of your private room.Its technological and educational superiority recognized by the astronomical observatory,this wallpaper is designed to implant hope and wishin children&＃39;s heart and revitalize childlike innocence the heart of adults.&＃12288