Designed for extreme winter weather performance. This product uses Heavy Duty Galvanized steel frame inside a synthetic boot encasing which is resistant to Ozone, UV and surface tears to prevent metal hinges from freezing. Compression molded, Large profile rubber wiping element lifts heavy, slushy snow more easily in comparison to regular all season blades. Universal pre-installed adapter works with all popular traditional wiper arms. Additional adapter is included for narrow saddle arm used on commercial delivery vehicles.