Less like a zen master, more like a functional imbecile...
I'm 99% sure the sizes are 24" driver and 20" passenger. Pep Boys or one of those places can tell you the right size. The Icons come in different tension ratings, ie., how strongly the blade conforms to the windshield shape based on the distance of the pivot to the wiper motor. I think "B" is the strongest. So, if your wiper motor is on the passenger side, the driver's side will use the "B" rating, the passenger side "A."For the life of me I can't remember which ones I used. I may have used two "B's." I think differential wiper blade arc radius spring tension only matters to German people who dance to techno music and treat their BMW's better than their kids.