Material: The sun, planets and stars stickers are made of special materials, which are non-toxic, environmentally friendly and waterproof. Not only a cute decoration for the day, but will also brighten up your kids' nights. Features: Our decals are very bright in daylight or light. Our sticker paper kit is easy to use and easy to remove. The sticker is suitable for smooth walls. Before pasting, make sure the wall is smooth and free of dust. Note: Due to the ink used in the product and the sealed packaging of the product, the product may have a slight odor and is non-toxic. We suggest you put it outside for ventilation before use. CREATIVE DECORATION: 2 solar system stickers are perfect for decorating children's rooms, a creative gift idea to create the perfect starry sky.