Add a few Berkley Vanish Bulk Spools to your fishing arsenal, and you'll always have the high-end performance you've come to depend on. Berkley revolutionized fluorocarbon lines by altering the molecular structure of Vanish fluorocarbon to create a fishing line that's virtually invisible in the water. It is extra sensitive to detect bites, yet offers shock absorbency for fighting power after the hookset. Soft, low-memory formula casts easily, making it ideal for both spinning and casting reels. Virtually invisible in the water Extra sensitive Shock absorbency Soft, low-memory formula