Features: Easy To Use: Clean the window with a duster first then spray a mist of water on the glass. Then peel off the anti-collision window film from the vinyl backing and place it on the window in any design you want. If you want to rearrange it simply peel it off and move it around. Transparent Matte Design: The specially developed reflective material in each window film reflects ultraviolet sunlight as a luminous warning sign for birds for people they appear as frosted glass or etched glass. Wide Range Of Applications: The stickers prevent bird and human strike. You can stick them on glass panes porch doors or bay windows can act like mirrors with the sun rays reflection. The tree leaves can also decorate your windows or glass doors. Save Your Birds: these stickers can help birds notice glass prevent birds from hitting windows and sliding doors. Intimate Service: If you have any questions about our products please feel free to let us know. We will provide you with quality service. Specification: Material: PVC Size:22*30cm includes: 1 *Hummingbird Static Window Stickers "