These wind deflectors have been a good purchase. They work well and look good, but it did take a little time to get them fitted properly. There wasn't much in the way of fitting instructions - the diagrams printed on the packaging helped, but the deflectors kept falling back out of the window surrounds. It wasn't until I searched for fitting videos on You Tube that I found out about the clips you need to anchor the deflectors into the window channels. They say that these clips aren't always needed, so maybe that's why they weren't supplied with the deflectors I bought. All I know is that once I'd bought some clips, fitting the deflectors was easy. Now they're fitted I'm really pleased with them. Shame the deflectors didn't come with instructions and the clips.