50 yards per spool, Constructed from 8 fibers (7 Dyneema and 1 Gore Performance Fiber), 32 weaves per inch, Gore Performance Fibers add incredible fray and abrasion resistance for unmatched durability, Dyneema fibers provide high strength and sensitivity, small diameter, and hydrophobic water repellent protection that resists freezing. Measures 50 yards in length.