Modern Square Decal (4 Decals per package)

Bird House on the Greenway Verified independent store

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WindowAlert decals help prevent wild birds from accidentally striking windows. Each decal has a special coating that reflects ultraviolet sunlight. This ultraviolet light is invisi ble 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. The decals measure approximately 4 inches across, and are designed to be placed on the outside of a window. As a rough guide, we recommend one decal for every 3 ft by 3 ft section of glass. 4 decals per envelope, each approximately 3.375" x 3.375" Show more