Tuf-Line's 40lb XD Clear Fluorocarbon is a highly abrasion-resistant fishing line that is also virtually invisible underwater. Tuf-Line XD is the perfect line for targeting skittish fish or species hidden in/under heavy cover, dragging baits along rough, rocky bottoms, or hunting for an offshore beast. With less stretch and slack, Fluorocarbon XD delivers solid hooksets, even at long distances, while sinking quickly, dropping to the depth you need to for the fish you're targeting.