Panther Martin FishSeeUV Inline Spinner - The scientific premise of UV lures is simple, fish see colors as if they were under a black-light. Fish identify each other by using ultraviolet vision to pick out markings on other fish, which are invisible to the human eye. These lures will attract and catch fish anywhere! Six eye-popping patterns Fish see Ultraviolet colors as if under Blacklight Particularly effective on cloudy days A great choice for clear or murky waters Unique convex/concave shape of blade sends out sonic vibrations Easy spinning ultraviolet blade is irresistible to fish Prop 65