Genuine OEM Lexus Wiper Blade Rubber Insert, part number 8521452060. This is the rubber element that makes contact with the windscreen to clear water and debris. It is designed to fit specific wiper blade assemblies for effective and streak-free cleaning. Made from durable, weather-resistant rubber, it ensures consistent performance in various conditions. Genuine OEM parts are crucial for wiper blades as they guarantee the correct flexibility, shape, and material composition for optimal wiping efficiency and longevity.