I bought a new stargazer window screen/shade for my 2017 T@G. In addition to the 4 screws included to install the unit at the corners, it also came with these 2 black plastic pieces and 2 screws. I have no idea where they are supposed to go, I can't find anything like them on the window screen/shade I am replacing. I am happy to see the bug fuzz is already installed in the new one!