The HERMA glow-in-the-dark stickers or wall decals can be easily 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 release it in the dark, allowing them to glow for a long time. The cheerful, fluorescent stickers can be easily applied to light switches, in children's rooms, on ceilings, and walls, creating a delightful starry sky, for example. Delight your little guests at birthday parties with these glow stickers as party favors. They are also perfect for school enrollment, in school cones, or as a wonderful surprise in an Advent calendar.