If you own a W447 series vehicle, have you ever been annoyed by wiper chattering? Wiper chattering refers to the wipers not moving smoothly when activated, but instead catching and jerking across the windshield. This is a common phenomenon in Mercedes-Benz vehicles in general, and although the exact cause is unknown, there are various theories: ① The strong pressure applied to the glass to withstand the wind pressure experienced during high-speed driving on the unrestricted Autobahn. ② Due to Mercedes' stringent safety standards, the wipers are designed to detach upon impact in a collision to prevent injury to pedestrians and occupants. In any case, wiper chattering is unpleasant, and you'll immediately want to turn off the wipers. Therefore, many people replace their wipers with aftermarket products like the Bellof flat wiper. Although Mercedes-Benz also offers genuine silicone wiper blades that don't chatter, they are, of course, expensive. And now, we would like to introduce this product. This aftermarket wiper is compatible with all W447 series vehicles and, of course, does not chatter. It's a super-water-repellent silicone wiper blade. It has durability equal to or greater than the genuine product and has cleared the strict quality standards of BMTSR. The price is also surprisingly affordable, and it's a part that will surely satisfy you. We have verified this on our own vehicle. Due to being an imported product, the quantity is limited, so please take advantage of this opportunity. ※ This is a set for the driver's and passenger's side, and comes in a dedicated box. Also, the wiper rubber has a protective cover, so please remove it before use. Please refer to your vehicle's manual for installation instructions. Even a novice can easily replace them.