The Shimano Poison Ultima Spinning Rods are the pinnacle of the Poison series Shimano offers. Its unique looks and features break boundaries into the North American market, a serious addition to the hardcore angler and tackle enthusiast looking for nothing but the best. At the heart of this rods blank, Spiral X Core technology, an upgraded version of Spiral X on standard rods, was used to deliver exceptional lightness, enhanced torsional rigidity and improved compressional rigidity. Spiral X Core combined with the well-known and respected Hi-Power X, delivers exceptional rigidity, faster recovery, and improved blank strength, all while reducing weight. A new high performance guide train using lightweight Shimano X-Guides delivers serious casting distanced with unparalleled performance. Each spinning rod is outfitted with a Carbon Shell grip, transmitting extreme sensitivity to the user for easy bite detection and lure control.