Headliner question

I just bought a new headliner from year one. It is made by PUI (Parts unlimited Inc). It says it is for a 67-69 Barracuda coupe (Notchback). When I opened the box I found 2 pieces that look like sailpanels that don't fit my 67 cuda, the large piece that the 5 bows go through with enough material to down to the package tray, and a roughly 18"x 24" piece.
Anyone know what the sailpanels could be for? Do 69 cudas have them? I did a headliner on my 68 notchback a few years ago and don't remember getting the sailpanels,just the material that the bows go through.

Thanks,Mike