Rubber Trim between dash and windshield

There is a piece of rubber that runs along the very front of the dash that covers up the top of the dash and bottom of the windshield. This is a very mysterious piece. Does anyone know:

1. Does it have a name?
2. Does anyone sell it?
3. If not, what to people use there instead?

Any input would be appreciated!! I am getting ready to reinstall the dash and I don’t want to find out later that it goes in before the windshield or something.

Thanks!