Let the Galaxy Come to Your BedroomFeatures:- Made of non-toxic material, waterproof, pressure resistant & durable fluorescent PVC & paper.- Safe for wall - will not mark or damage your walls.- With this glow in the dark galaxy set, it adds the look of a real night sky . No more plastic synthetic look.- In day time it's white clean look, the dots merge with the wall. And in the dark the room become starry shiny bedroom.How to use:Put the stickers under the sunshine, lamplight or flashlight for a while to let them absorb enough light automatically, then stick them on the right place, they will be luminous in the dark.Specification:Material: PVCColor: Fluorescent GreenPackage includes:2 x Dot Luminous Stickers