Designed as an option for standard wipers, the “aerodynamic” wiper winds adds a sporty look to the outer appearance of your vehicle. In rainy weather, it prevents vibration (shaking) in the wiper and prevents it from erasing and sound properly. At high speeds, it completely erases the glass by applying pressure to the wiper arm. It can be used in front or rear windows. Product Installation: Separate your wipe from the wiper arm. Place the product using the clip passing on the delete. Caution: Do not install to prevent the deletion of the deletion. Check that you will wipe and assemble the wiper wind. Install in the direction where the wind will press your wiping. Material: Plastic box content: 2 wiper winds.