Car Boot Extender

I have a Toyota Yaris and my boot cover keeps falling out of place due to the side hooks are not long enough so i designed a cap the fits on but makes it longer so the cover dose not fall out of place. the dimension of the inside circle is 1 diameter and its 1.50cm extended from inside. nice smooth body. the pictures included show how it places in place. i recommend no supports, use PETG due to a hot car. the print takes only 16min to print, i personally printed one for each end.