Flat beam wiper. Retrofit kit with one wiper blade. Quick and easy installation. Bosch Automotive wiper blades are ideal for achieving streak-free visibility on your vehicle again. Optimal visibility and reduced glare enhance road safety and ensure relaxed driving. Installing the new wiper blades is a breeze and can be done in just a few minutes. You won't even need any tools. Aerotwin Performance flat beam wipers tested in the wind tunnel. Even at high speeds, the Aerotwin is reliable: its aerodynamic design guarantees you the best visibility even in challenging weather conditions. The custom-fit spring rail ensures the highest wiping quality at every point of the windshield.