3M’s IJ61 perforated window film is an excellent way to decorate and advertise your business. Unlike vinyl lettering and decals, window perf allows for an unobstructed view outside your business adding an extra level of both security and privacy. Although nearly invisible from the inside, all graphics are highly visible on the outside. Its most familiar application is for vehicle advertising and lettering.  Window perf allows for drivers to view their surroundings while operating a vehicle which is essential not only for their own safety but also for other motorists who share the road. The process of applying window perf is the same as applying any vinyl to a flat and smooth surface. Window perf is also re-positionable, allowing for a perfect installation each every time. The removal process is relatively simple leaving little to no residue.