【High Quality Material】Made of 100% fluorocarbon line, softer and tougher than stainless steel wire, anti-corrosion and anti-abrasion. Equipped with stainless steel barrel swivel and snap, quickly change for freshwater and saltwater. 【Higher Abrasion Resistance】Our fluorocarbon fishing leader is more abrasion resistant than other similar products, resist the friction of big fish's sharp teeth and other sharp objects underwater, protect mainlines from damage. 【More Sensitive】Fluorocarbon leader line is non-permeable to water, therefore does not absorb water and stretch. This makes the fishing leader rigs much more sensitive, even to the slightest bites. 【Invisible】Designed for stealth, our fluorocarbon fishing leader is nearly invisible underwater. So you can easily get your bait to the the wariest fish. Reduce fish spooking and increase your chances of a catch with this high-performance leader. 【Size】12/48pcs fluorocarbon leaders line in 4 sizes, 20LB(7.5inch), 30LB(10.3inch), 40LB(13.5inch), 50LB(19.8inch). Stored in a clear tackle box that fits perfectly your fishing bag, it’s a nice choice for your fishing trips!