UV enhanced, Atlas-Mike&&';;s Brite & Tight Bait Brightener adds intense shine to your fresh baits and helps rejuvenate old or frozen baits. Adds a UV enhanced shine to your bait Increases visibility on baits or even lures 4 oz squeeze bottle Works great on herring, sardines, anchovies, shad, minnows, alewife, eggs, prawns, and more