AeroTwin's patented beam design contains no metal or plastic brackets, joints or hinges, offering an ideal technology upgrade for vehicles originally fitted with conventional wiper blades Specially blended dual rubber compound with graphite coating removes even the smallest traces of water for exceptional all-weather visibility and smooth, quiet operation Specific beam curvature for OE specialty wiper arm types, coupled with dual precision-tensioned steel springs, ensures uniform pressure along the entire blade length for crystal clear visibility Asymmetrical wind spoiler uses air flow to increase blade-to-windshield contact - for consistent performance at highway speeds - while shielding the tension springs from severe weather elements for increased durability and long life