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Bird Barrier Optical Gel keeps all birds off all structures without harming them. The gel is pre-applied in low-profile application dishes that are easy to secure to surfaces with a dab of silicone. While humans see a plastic disc with gel inside because they cannot perceive ultraviolet light, birds perceive “fire” coming from the dish as an optical illusion — and thus will not land. The gel’s firm density won’t run, even when mounted upside down, and is impervious to extreme temperatures and moisture.
