Bosch Windshield Wiper Blade Set - 3397001909 - The Bosch Windshield Wiper Blade Set 3397001909 is a set of two wiper blades that feature a patented beam design for superior performance in rain, sleet and snow. The blades are designed to fit most vehicles and feature a durable rubber construction for long-term use. The blades are easy to install and provide a quiet, streak-free wipe.