This clever windshield cleaner and defogger is an essential accessory for the car, boat or even home as it quickly and easily clears windshields and mirrors of fog and condensation even dirt. It will not scratch surfaces and can be used either wet or dry. It is machine washable so it can be used over and over again. Product Description: Quickly and easily clears windshields and mirrors of fog and condensation, Will not scratch surfaces, Perfect for cars, boats and home use, Use wet or dry, No chemicals required, Machine washable.