Having the ability to troll lures and baits over a wide range of speeds without complicated adjustments to the length of the tow cord has been a dream of anglers and captains for many years. Unlike any other downrigger or planar the Zwing's unique design creates an underwater disturbance that imitates the vibrations produced by injured or schooling baitfish. Adding flashers, dodgers, or other teasers makes for an even more effective fish-attracting system. The Zwing brings downrigger fishing closer to perfection.