The Shimano Trevala S Jigging Rods are a series of saltwater fishing rods specifically designed for the butterfly jigging technique. The S-Series utilizes a new proprietary construction type called C4S. C4s results in incredible hoop strength and incredibly sensitive rods. Because of this construction Shimano can create tiny rod diameters which reduce the rod's weight allowing anglers to focus on their jigging technique and not the weight of their tackle. There is a Trevala-S Rod for fishing every size of Shallow butterfly jig. These very specific actions make success an even greater probability when spot fishing sunken stone outcroppings and wrecks. You will be amazed what these little rods are able to conquer.