Product: Zone Tech Car Anti-Glare Tinted Windshield Extender - Anti-Glare Sun &amp; UV Rays Block Visor Extender for Any Car, Truck or RV
Overall sentiment: negative
Customer reviews:
Does not have the density for driving directly into the sun. 
 The single center clamp (instead of 2 at the sides) has a hard time to firmly hold the plastic piece in place on rough road. Most car visor now a day has a mirror with a hard plastic cover, the center clamp will rest on this hard cover and slide off easily.  The plastic visor has way too much reflection so when it's straight down, the vision is washed out as if you crank up the brightness and crank down the contrast on your TV.  If I angle it right, the reflection can be reduced but by then, the height of the visor can only be around 3-4 inches and I have to adjust the angle frequently that can cause distraction.  I would give it a 2 stars for what it worth but this has a NO RETURN policy so another start is reduced.  Think twice before you plan to take a chance to try it because you may get stuck with it as I do. 
 a cheap piece of plastic that rattles when up and the worst thing is even if you're a prime customer you cannot return it you're stuck with it 
 These are an absolute waste of money and will not even stay on the visor. 
 Would not recommend as plastic piece was too bulky and did not fit.  Had not issues in returning product. 
 Not dark enough and it's not clear to view through its very foggy, I wouldn't recommend this visor 
 just u have to cheak about the size in the pic its so big but when i buy it big different
this is fine but the quality of it like fogy weather not clear glass 
 Works ok, but not great. 
 So thin my wife cracked it in half just pulling it down. It was warm in the car but not hot and the lens was soft and snapped. I would look for a cheaper version as this seems to be a throw away item. Don't bother with this one. 
 It does deflect glare and it does stay in place very well.  The problem I have is that the view through the lens is a bit distorted and causes eye fatigue if used for extended periods. 
 Came broken.  I tried to use it anyway (just to block some of the sun), but it was not stable (slid around a lot) because it only had one clip.