RIO Fluoroflex Plus Tippet - 100% fluorocarbon and the strongest, thinnest fluorocarbon on the market with incredible strength and nearly invisible to fish. Fluoroflex Plus is incredibly supple and ties excellent knots even to nylon tippet. Nearly invisible 100% FluorocarbonHigh abrasion-resistance and excellent knot strengthIncredibly supple and ties excellent knots even to nylon tippet30 Yard spools