Order by 4.30pm for same day despatch. All Clear At The Rear! This Bosch Aerotwin wiper blade Specific to the BMW 3 Series (E91) Tourer maximizes the wiping quality, lasts longer and is decisively less noisy than traditional wiper blades. Safer driving, when it comes to wiping, depends upon reliable and clear performance. The rapid success of "Aerotwin" is based on those advantages. Instead of a system of bows with articulated parts, the joint-free wiper consists of a one-piece rubber profile with an integrated spoiler. Two spring-loaded rails distribute the contact pressure evenly over the entire length of the wiper blade. This further improves wiping results even at higher speeds. With the Aerotwin Bosch has redefined innovation with a design that combines optimal wiping efficiency with maximum convenience.