Nah, they're not small.. if anything.. they're about the same height as the ebay ones. If you've had the ebay ones.. you could open the windows with these just as much as the ebay taped ones. Now I could even open the rear passenger windows because the ebay ones i had.. they did not extend to the whole window. These let you open your window about 1 1/2 inch I think.
One small problem I noticed is that on the front passenger side.. the visor blocks the corner of the side mirror just a tiny bit but not enough to obstruct your view.