The windscreen is just a piece of black mesh cloth that stretches between the two headrests. I use mine, but I'm not sure it's really that effective, and it partially blocks the rearview mirror anyway. There is a clear plexiglas screen sold aftermarket that many folks use and love. Not too expensive, and some of them are lighted (you have to see it to understand...). I think you can get one on eBay. Since you've got me thinking, I may get one of those and sell you my old one...I haven't bothered to think about this before, because I assumed that it was a part of buying a used SLK. My car didn't come with its windscreen. Should I bitch?