The pioneering one-piece wiper system. One of the most revolutionary wiper designs, the Bosch Aerotwin is a hallmark of innovation. The Aero spoiler creates down-force against the windscreen, just as the one-piece beam design produces even pressure, whilst offering a sleek, modern appearance. The lack of pivots and moving parts, as found in traditional blades, means almost no flex, chattering or noise, and significantly improved service life.