These Bungy Oval Rings make tying a Bungy rig a lot easier. After mounting the hook and aligner / heat shrink tube, place an Oval Ring on your hooklink and twist your hooklink through the ring twice.
Then pull the rig through the Bungy elastic and mount an Oval Ring again where you put your rig through again. Install the swivel. Now you can slide the elastic on both sides over the Oval Ring to create the Bungy effect. The Oval Rings can always be moved according to tension or to vary in length.