International Space Station Ultra Bright Glow in the Dark Decal Saturn V Shuttle Upto 10 Times brighter than old style Glow in the Dark, GITD,luminous, products Glows for 10 hours+! No light coloured backing required, Works just great on Dark backgrounds Very high quality stickers will conform to uneven surfaces Super Luminous materials that only became available since the turn of the Century, truly a 21st Century product