I bought this blade for the rear window of my Smart 451. This is after only one year already the second purchase, because the longer the other wiper has not kept. The rubber track has simply replaced or is torn in he center in itself. How this can happen is a mystery to me. The whole part is actually completely made of plastic and does not look very stable. The wipers for the windscreen (Bosch Aerotwin), however, have metal parts and are very good and durable.
