These are easy to install, and they hold very well to the car. Feel nice and secure. My only gripe is that it is hard to get the bar perfectly centered between the two feet, but half and inch isn't going to make a huge difference. I got the rapid aero version with aero blade bars, and I couldn't be happier. Many of the fit kits needed for this to properly fit your car are not found here on backcountry. You need to go to thule, do a fit configuration, and it will tell you exactly what number fit kit you need. I couldn't find mine for my jeep grand cherokee on backcountry, so I just ordered it straight from thule. little extra work for a lot of good times!