Characteristics: Exclusive high density leader material that obtains its extraordinary performance from a 3-layer structure. Outer layer is a Fluorocarbon skin that provides the abrasion resistance and prevents UV rays from crossing the line and causing it to quickly age. The mid-layer is responsible for ensuring a super soft, low memory and high knot strength leader. The core is made of nano-technological nylon, which gives an extraordinary strength to the line. The material comes on a very practical large arbor spool. Always easy to pick new material and take little room in your pockets and bags. Lbs: Diamter: Tensile Strength: (VS other) 26.3 lbs 0.33 mm 11.9 kg 10 lbs 34.8 lbs 0.37 mm 15.8 kg 15 lbs 44.4 lbs 0.43 mm 20.2 kg 25 lbs 53.5 lbs 0.46 mm 24.3 kg 30 lbs 60.6 lbs 0.53 mm 27.5 kg 40 lbs 78.3 lbs 0.64 mm 35.5 kg -- Once you try it, you may never go back...