·       Contains Eight (8) static-cling reflective decals. 

·       Save the beautiful birds you love. WindowAlert stickers act as a deterrent for wild birds from flying into glass windows and sliding doors 

·       The specially designed reflective material in each window cling reflects ultraviolet sunlight as glowing warning sign for birds. To humans they appear as frosted or etched glass 

·       Designed for a one-time application to exterior glass surfaces.