Berkley Trilene 100% Flourocarbon provides excellent shock strength, abrasion resistance and knot strength. It's also fast sinking due to greater line density, so you feel bites better and faster. Reflective index similar to water makes it nearly invisible to fish. Proprietary 100% PVDF formula is specially processed, making it the ultimate in impact strength. 200 yds. per spool. Lb. test: 4, 6, 8, 10, 12, 15, 17, 20, 25. Colors: Green, Clear.