Specific line for making ultra-modern leaders with a specific weight designed to maintain a neutral position in the water, thus enhancing the natural presentation of the bait, especially when fishing with very light baits like bigattini. Also ideal for competition surfcasting targeting surface fish, as the leader positions itself perfectly in mid-water without weighing down the rig like a fluorocarbon would, which has a very high specific weight and proves to be a sinking line.