Windshield trim install

I got some windshield trim for the 72 Swinger today, how involved is this stuff to install. I have never done it before, I assume I should get some new clips, but does it snap in or what?
Thanks
AL
Hey Al, Frank would like to steal that trim off you!! I spoke to him this morning and he said to bring your car over to change the pulley. It has to be pressed in. Just a thought.Not sure if I will take the Duster tomorrow,but going for sure.. Craig.