Cortland Planer Board 500 Line brandishes pure Spectra fibers, one of the strongest and lightest fibers in the world that's also resistant to UV light damage. This material turns this Cortland Planer Board Line into a longer-lasting trolling braid with low elongation, superior strength, and high durability. Simply put, you can rely on Cortland Spectra Planer Board Line to do its job! Premium Super Braid Planer Board LineMade from pure Spectra fibers and constructed from 12 individual carriers for a smooth and round finishSpectra fiber properties: low elongation with high resistance to abrasion, water, and ultraviolet lightBreak strength: 500 lbs./226 kgDiameter: 0.059 in.Color: white