Berkley BCFS40-81 Trilene Big Cat Filler Spool with 40-Pounds Line Test (Pack of 4), Solar Collector, 220-Yards Trilene big cat with high shock strength Controlled stretch adds fighting power for big cats Reflects sunlight or backlight for high visibility; shock absorbent and easy to see Abrasion resistant to stand tough against rough or sharp objects Available in solar collector color; measures 220-yards length