Jrc 6ft leader the jrc 6ft leader comes in various sizes and colours to create the ultimate in concealment for most angling situations the sinking nylon core of 30lbs is coated with a super strong smoothly polyurethane sinking coating allowing the leader to follow the contours of the lake or river bed much better jrc 6ft leader sinking smooth polymer coated strong 30lb inner mono core abrasion resistant shock absorbing camouflage colours to suit our hook links green