What You GPACKAGE INCLUDES: You will receive 2 sheets of rainbow reflective window stickers, a total of 23 pieces of small stickers quantity is enough for your decorating needs et: 23 pcs prism window stickers for bird strikes MULTIPLE SIZES: Anti bird strike window stickers are designed with various sizes of butterflies and birds, which will have different visual effects in different light and can prevent bird strikes MATERIAL FEATURES: The glass window sticker is made of durable PVC material, not easy to crack or fade, almost transparent in natural light will turn into bright rainbow light in sunlight NO ADHESIVE: These stickers for windows to stop birds flying into window are installed using static cling, and all you need to do to affix them is wipe the glass clean and spray some water on it WIDELY APPLICATION: Butterfly window stickers not only help birds to keep an eye on the glass and prevent collisions, but they can also be used as decoration for windows in homes, offices or cars