This elastic connector uses a 2 part capsule to cover your elastic knot which is joined to the dacron loop for a good non tangle set up.
The softer rear part seals the tip against water and cushions the elastic more when the elastic is retracted into the pole tip.
3 Connectors per pack.
 
How to set up:
https://www.youtube.com/watch?v=NaefC0Gt_Kc