WEATHERACE 20 .in WIPER BLADE With a aerodynamic frame for increased performance these blades are made of smear-free natural rubber and provide a pre-installed universal adapter for easy installation and features a stainless steel blade backing. Designed to provide superior performance at highway speeds WeatherAce all-weather wiper blades can enhance safety in every condition. The universal connection system on this 20-inch windshield wiper blade allows for installation in seconds. Aerodynamic frame boosts performance Blades crafted from smear-free natural rubber Pre-installed universal adapter for effortless installation Stainless steel blade backing for durability Single 20-inch blade with universal connection system for quick installation