Not only do these winder bungs allow you to finely tune the tension of your elastic by winding it on and off to your requirements, but the screw in bung remover can also be extended to any length you wish. This means that you can fish a short piece of elastic with the bung well up the section (hollow elastics works better at short lengths in the pole) without having to worry about if you'll ever be able to get it out of the section again.Size 8-14 elastic bung base diameter 20.0mmAllows you to easily fine tune the tension of your elastic by winding it on and off the retainerBung extractor rod quickly screws into the bottom of the bung allowing you to quickly remove the bung and adjust your elastic tension2 pcs