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SOLUTION: WindowAlert is a decal that may be applied to home and office windows. The decal contains a component which brilliantly reflects ultraviolet sunlight. This ultraviolet light is invisible to humans, but glows like a stoplight for birds.
TRACK RECORD: WindowAlert decals are sold in 500 bird hobbyist stores across the country. Birding enthusiasts enjoy the unobtrusive appearance of our decals and the fact that they work so well.
Each decal contains a component which brilliantly reflects ultraviolet sunlight. This ultraviolet light is invisible to humans, but glows like a stoplight for birds.
The decals are approximately 4â€ across and should be placed a minimum of one every 3x3 feet of glass, on outside of window.
To the human eye, the decal appears as frosted or etched glass.
The decals are packaged FOUR DECALS per ENVELOPE.
Shipping and handling ONLY 50 CENTS per item within the USA.
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