The Seaguar InvizX in a 600 yard spool. This 12 lb flourocarbon line is soft and easy to cast. InvizX also has superior sensitivity. Fill your spool with a main line specially designed to dominate fresh water. It’s virtually invisible, with advanced hook-setting power, smooth cating and great knot strength.. Specifications Yards: 600; Weight: 1.09 lbs; .