No complicated or confusing knots are required when using the Anglers Image Fly Line to Leader Cast Connectors, just a couple of over hand knots and you're rigged and ready to cast. In addition to providing a fast and easy line to leader link, the cast connectors will not rust or affect your drift, mend, cast or hook-set. Plus, the hi-vis orange color connector allows you to easily track your line in rough, flat, murky and clear water. 6-pack. Simple to use Fast and easy link Won't affect your drift, mend, cast or hook-set