Trailer Blind Window Spool
"A small replacement spool for the window blinds in a travel trailer." - X50arm
You also can go to this link and check it out: https://www.thingiverse.com/thing:2851053
"A small replacement spool for the window blinds in a travel trailer." - X50arm
You also can go to this link and check it out: https://www.thingiverse.com/thing:2851053