Bosch Aerotwin Flat Blade Set A531S for front wiper blades. This set includes two blades, one 550mm (22 inches) and one 530mm (21 inches). Designed for right-hand drive vehicles and features patented Power Protection Plus wiper rubber technology for extended service life, excellent wiping efficiency, and quiet operation. The blades have a long-life rubber formula enhanced by innovative additives and durable Evodium steel spring strips. The aerodynamic design with an asymmetric spoiler eliminates vibrations and prevents blade lift at high speeds. It comes with a pre-assembled, vehicle-specific original adapter for easy and precise installation. Suitable for models like Audi TT and Mercedes-Benz C-Class/SLK. OEM Numbers: A 205 820 24 00, 8J2 955 425 A, 8J2 955 426 A. Quantity per package: 1 unit (kit).