Bosch Front Wiper Aerotwin Blade A011S. Genuine Bosch part. Sizes: 550mm + 450mm. Maximum performance flat wiper blade set with vehicle-specific original adapters. Features Power Protection Plus - an innovative wiper rubber technology with a patented coating that optimizes wiper performance throughout its service life, without leaving streaks or deposits on the windscreen. Makes the wiper element lip incredibly robust and resistant, as well as increasing its service life. Reduces friction of the material to a minimum. Graphite coating with double micro edge. Smooth and quiet operation is ensured by the soft rubber spine for optimized flexibility. Fitting instructions included on packaging for all wiper blades.