Specification: Material: metal Size: 9 * 5.7 * 3.74 cm / 3.54 * 2.24 * 1.45 inches Included: 1/2 * Car Wiper Enhancer Features: 1, Improves wiper performance: Adds pressure, keeps the wiper close to the windshield and eliminates wiper vibrations. Increases car visibility. Specially designed for improved contact with the wiper blade. 2, Suitable for all vehicles: Extends wiper blade life, prevents wiper lift, allows wipers to better clean mud, snow and slush, saves washer fluid. 3, Easy installation: Easy installation ensures you spend less time on installation and more time enjoying increased performance in rain and snow. 4, All-weather reliability: Perfect for various weather conditions, our springs ensure constant pressure for optimal performance, whether it's rain or shine. 5, Clear view upgrade kit: Perfect for adding extra performance to your windshield wiper system. Perfect for installing extra springs, ensuring a clear windshield for safe and enjoyable driving. Upgrade your windshield wiper system now for a better driving experience.