Why do the wiper blades need replacement?

Wipers are an essential part of a car and need replacement in every six months on an average. There are a number of factors that contribute to the wear and tear of the wipers. These include the climatic conditions, rubber deterioration over time, slope of the windshield etc. If the blades call for replacement, you need to purchase a new one. If you are buying for the first time, make sure that you collect all information about the wiper blade so as to purchase the right product. You can buy original wipers at www.wipersdirect.com.