It might be difficult to browse through all the wiper blades in commerce, as well as the specifications and promises. However, the most expensive blades are not the best ones. While you do get what you pay for, it does not mean that you need the most expensive units. However, do not go for the cheapest ones either. Indeed, materials might give you some hints about the durability. Silicone is the best one, as it can support you for over a year. When it comes to more common materials, they require replacement about two times a year. All in all, if not sure what your car needs, take a look at www.wipersdirect.com/wiper-blades/nissan/.