65 Dart Headliner bows. WTF?

http://www.dantesparts.com/headliners.html

64-66 Dodge Dart, All 2 dr htp/sdn and 4dr sedan-$79.00

{BTW I added insulation when i did my headliner, made the car quieter. :)}
Headliner Insulation

Headliner insulation glues directly to roof before the installation of the headliner. Used to improve sound deadening and adds protection from the heat.
A/B/E body models-$24.00