TroutHunter Fluorocarbon Tippet is one of the best performing fluorocarbon materials available. It offers superb knot strength and abrasion resistance. Nearly invisible due to low refractive index. Fluorocarbon is denser than water so it sinks making it great for fishing below the surface. The large arbor spool is designed for low material memory and easy handling in a stackable, compact and durable design. Premium rubber tippet tender included. Unique colors for each diameter. 50 meter spool.