In theory, the wiper blade is a service replacement item. However, the truth is that vehicle owners often wait until the product is disintegrating before replacing it. This is despite the fact that this component is, in reality, a safety-critical item with impaired performance leading to a hazardous reduction in visibility. According to the European Automotive Insurers Association, some 20% of all car accidents are due to poor visibility. The greatest contributory factor is poor windscreen clearance, invariably caused by worn-out wiper blades.