The HERMA glow-in-the-dark stickers or wall decals can be removed without leaving any residue from smooth, dirt, moisture, and grease-free surfaces, making them suitable for changing decorations in children's bedrooms and play areas. They absorb incoming light and emit it in the dark, allowing them to glow for a long time at night. These cheerful, fluorescent stickers can be easily applied to light switches, in children's rooms, on ceilings, and walls, creating a charming starry sky, for example. Delight your little guests at birthday parties with the glow stickers as party favors. They are also perfect for school enrollment, in school cones, or as a wonderful surprise in Advent calendars.