Leaf Medley Window Alert Window Decals Set of 10 Decals

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Prevent bird deaths! WindowAlert decals help prevent wild birds from accidently striking windows. Each decal has a special coating that reflects ultraviolet sunlight. This ultravio let light is invisible to humans, but birds see it as a brilliant glow – much like a stoplight. To the human eye, the decals appear as frosted or etched glass. For best results, the decals should be placed on the outside of a window. As a rough guide, we recommend one decal for every 3’ x 3’ section of glass.2 set of 5 static-cling decals. The Elm, Oak, and Maple leaf decals measure approximately 4” across. The two Aspen decals measure 2" across. Show more