Hitch Part-PH19 - Cord Lock and Spring Kit
(Set of 4) 1/4" X 8" Polypropylene Cord with .947 Compression Spring and Delrin Cord Lock.
1/4" Polypropylene cord cut to 8" lengths with the ends formed to provide easy threading on one end and a stop on the other. A .947 " x .25" compression spring is fit against the stop. A two piece delrin cord lock forms the desired length in fitting to individual bicycle frames.
These are component parts of the PH 18 "tie down" hitch.