The Powerflex Core shooting lines have a strong monofilament core that results in thin diameters, great strength and durability and a very slick XS Technology coating (new for 2009) for ultimate distance. These shooting lines are available with either a supple coldwater coating for tangle free performance or with a hard tropical coating that will not wilt in the heat. Each lines feature a large welded loop at the front end to speedily attach the RIOMax II shooting heads. Two densities available: Floating and Intermediate. Each size is color coded for easy recognition.