Review on 🌞 EcoNour Car Side Window Shade 20x12 (4 Pack) - Baby and Pet Friendly Sun Shade for Complete Infant Protection - Blocks 97% UV Rays & Heat - Rear Window Sun Blocker for Cars by Andrew Frison

I like the way they work. I have a new truck that unfortunately is too big to fit in my garage so I bought it to avoid sun damage when parked outside. They stick very easily to the rear windows. In fact, the rear windows could be a bit bigger. The front windows are a bit problematic because, like all front windows, they taper towards the windshield. Since all windshields have this property, it would be logical for someone to make a curtain at least roughly match. You can mount them on my front windows, but that distorts the frame and reduces coverage.