This flasher is designed with a beleled edge to produce the best prismatic effect throught water possible. We have also designed our flashers with three different actions, by use, of our three eyelets at the butt end. This flashe's action is superior to anythign on the market. You will have superior action with less resistance while using this flasher. We recommend a tail leader from the butt end of the flasher to your bait from 18" to 36" in length. For lighter line, less than 20 lb test put a second barrel swivel in front of flasher at least 8", with heavier line between flasher and barrel swivel.