The beauty of Window Perf is that it is incredibly low tech, comprised of 50% vinyl and 50% holes. Human eyes absorb light reflected from objects. When someone looks at the image on your window, their eyes absorb the light being reflected off of the printed image. The holes cannot be seen. The graphic looks like a solid image!
The sticky side of the graphic which faces the glass, is black. Looking out from the inside of a building or vehicle, your eyes absorb light reflected off objects outside, such as buildings, cars, trees, etc. Your eyes blend the black material on the inside with the images seen through the holes, creating the illusion that there is nothing on your window. The resulting effect will amaze you! These graphics apply to the outside of the window and will not effect, or be effected by window tints of factory window defrosters equipped on vehicles.