-Ultra-strong and highly durable . Made of ultra-strong composite material "Carbo Nylon®" that is a blend of fluorocarbon and nylon . -Hybrid shock leader A hybrid shock leader that combines the maneuverability of nylon, strong linear and knot strength and durability, and the low elasticity and high sensitivity of fluorocarbon, allowing you to detect even distant bites and hook fish. Easy to handle, does not easily get tangled, and has a flexible characteristic that makes it easy to tie knots.