100% Pure Fluorocarbon 4-12LB Carbon Fiber Leader Fast Sinking 25/50M

Fluoroflex Plus is 100% fluorocarbon and the strongest, thinnest fluorocarbon on the market with incredible strength, for example: 5 lb for 5x material and is nearly invisible to fish. Fluoroflex Plus is incredibly supple and ties excellent knots even to nylon tippet.