The wiper comes with four different adapters, numbered 1-4, for which the directions for matching the correct adapter number to the wiper arm are clear enough. The directions for snapping the wiper blade into place for adapter number 4 were neither clear nor intuitive, however, and it was necessary to follow a demonstration on YouTube to figure out how to do it (a 2-step/snap process). The process involves squeezing the blade and the arm together with the mounted adapter, and that squeezing could strain the rubber in the middle of the blade, which happened to be exactly the spot where the original blade became separated and required replacement of the wiper blade in the first place. This makes me wonder if the mounting process risks straining the rubber in the blade that results in future failure of the rubber blade. I am also concerned that the plastic bits that allow the blade adapter mount to snap into place may become brittle over time and seasonal temperature extremes. These two factors, the mounting process risking future separation and the quality of the hard plastic pieces holding the blade in place, may be design flaws.
What kind of vehicle do you drive? 2017 Ford Focus