MORE THAN JUST A WIPER BLADE! Rain-X Twin Pack Latitude Water Repellency wiper blades apply new Rain-X water repellent technology directly to your windshield which now lasts longer than ever! The water-repellent transfers from the squeegee to the glass –and the Magic of Rain-X is activated. These 2-in-1 wiper blades clear and repel the elements to provide enhanced driving visibility. Compared to traditional wiper blades the difference is amazing! Latitude Water Repellency blades work by transferring new Rain-X water-repelling coating from the wiper squeegee to the windshield during initial use and lasts longer than ever! For optimal water repellency activation run your wiper blades on a clean wet or dry windshield for 2 minutes. Once activated the water-repelling action will last for the life of the blade. The Rain-X water-repelling coating will also help clear your windshield of harsh winter weather driving elements such as ice snow and sleet. This can help reduce wear and tear on the squeegee and lead to longer blade life. For Optimal Water Repelling Results: Ensure the windshield is clean Install wiper blades then remove the yellow plastic squeegee cover. Turn on the wiper blades and wipe at medium speed for 2-3 minutes to activate. In wet weather conditions: Simply run the wipers across the windshield. In dry weather conditions: apply water or washer fluid intermittently through activation period. After activation spray washer fluid onto the windshield to observe water beading.