Get more from these Off Road Wiper Blades with WeatherTread ScrubX Technology. Perfect for making certain you see the road or trail ahead when weather conditions are less than ideal. The exclusive BFG tire tread pattern is designed to channel snow and water away from the wiper blade while reducing blade freeze up from ice. WeatherTread technology assists in removing snow, ice, rain & water, mud, and other debris. The Scrub-X™ rubber element help slash through bugs, mud, grime and more. Sold only in pairs in the following sizes: 13", 15", 18", 20", 22".