These Poly Leaders are a great option to get the performance of a sink tip line on a budget. The loop to loop connection on this leader means it’s easy to use and easy to change out to a normal leader if needed. It’ turns any floating line into a sink tip line without having to have a second reel or an second spool with a whole second line on it. There are three different sinking rates depending on how quickly and deep the fly needs to sink-intermediate, fast or extra fast sink. The only down side on these leaders is that the leader it’s self is a black coated plastic and the length of clear monofilament to tie a Fly to is about 8”. I have some tippet rings and the first thing I do when I buy these is tie one on the end and then add tippet before I attach a fly to get the most use out of them!