The new Shimano Terez Rail Rods were designed to match up perfectly with Talica 25II and Talica 50II to fish heavy PowerPro to chase down Cow Tuna. 7'4" in length to help clear the corner when your Tuna is circling. The extra heavy action was designed to fish with the Talica 25II wutg 100-150lb. PowerPro with a top shot in the 80-130lb. range. The extra extra heavy was designed for either the Talica 50II with 130-200lb. PowerPro and top shot in the 100-150lb. range.