The Panther Martin® FishSeeUV™ Original Spinner adds a deadly lure for catching fish on cloudy days or in murky, muddy water to your arsenal. This proven inline spinner is eye-popping enough in normal light, but put it under a black light (replicating the way fish see them) and you'll be amazed at how well the brilliant ultraviolet colors and fluorescent orange bead stand out from the background.