If your vent windows tend to swing closed when you drive, this support will hold them open. It can work with the mail window open or closed. It is intended to attach low on the window frame.

This was made for a 1972 Super Beetle, but it will probably for most models after 1967. I don't have a pre-67 to test so it may fit those too. This should be printed in ABS or PETG so it can withstand car interior temperatures.

This object was made in Tinkercad. Edit it online https://www.tinkercad.com/things/3ozuBpdcF1k