The Nomad Design Madscad Autotune Squall Runner delivers the action and durability you need when trolling for hard-hitting fish. The Autotune system means it'll run true, even at speeds over 18 knots, while the deep-bodied profile glides through the water with an S-shape swimming action that wahoo, mackerel, and other big pelagic species can't resist. This saltwater trolling lure is built with a metal matrix plate system and Diamond Armour internal strength system for the toughness to withstand toothy attacks. Perfect trolling lure for fast-swimming ocean fish Deep body shape delivers a lifelike baitfish profile Autotune system ensures it runs true at speeds up to 18 knots S-shape swimming action proves irresistible to wahoo, tuna, and mackerel Rugged matrix plate system with Diamond Armour internal strength system