Operation:
1. Clean the window, make sure surface is dry.
2. Peel the tabs for the double stick tapes on the back, and folding them over the front.
(Do not peel them all the way so that you can make adjustment if you need.)
3. Just put it in place and line it up with the window.
4. Once youre satisfied with the alignment of your window louver on the rear window, you can start peeling your tape slowly.
5. Make sure everything is good. Press around the edge to firm it up.