Zone Tech Car Roller Blinds Side Window Sun Shades - Premium Quality 2 Pack Universal Retractable Roller Blinds – Protects Baby, Pets and Passengers from Harmful UV Rays and Heat- Keeps Car Cool

So far seem to work well. Suction cups hold well. The screen has a spring loaded button on the side to retract screen when not in use that's pretty handy. They do block a decent amount of light but still allow you to see out the window. So far pretty happy with purchase.

I intended to install these shades on the rear window, but it keeps falling off once car is exposed to direct sunlight for more than one hour. I guess there will be no such problem if you are going to use these on side windows.I tried to put suction cups in boiling water but it did not help.Also, one of the shades stopped folding in a week, so quality control could be better

I finally got one to stay on a window, but the second one just doesn't work...does not stay in place. It is about the misaligned grips that do not hold the roller in place. Roller spends more time on floor than in window. Do not recommend.

These were still and hard to use. The suction cups didn't work on the window (they kept falling off). They are now in the "donation pile". What a waste of money.

Overall the quality of the material used is good, but the button to retract the blind back into place is quick and it gets stuck most of the time as you retract and it has to be detached from the window to release the stuck bold.