Berkley Trilene XL is a monofilament fishing line that is XL (Xtra Limp) for mainly spinning reel use. However XL has been rated one of the strongest tinsel strength in the market. Just go up one size if you want to get and extra strength line. The XL Monofilament, from Berkley's Trilene brand of fishing lines, is extremely smooth casting and resists twists and kinks that often occur after multiple uses. Although the XL line displays incredible strength, it also possesses the sensitivity to feel structure and strikes. Anglers can employ this versatile line for use with a wide variety of baits and techniques. The 330yd spools of Berkley Trilene XL monofilament are available in eight line sizes of the clear or green color.