ACDelco Gold (Professional) Hybrid Windshield Wiper Blades are a high quality alternative to Original Equipment (OE) parts. These hybrid wiper blades require no adaptors and provide easy one-step installation that fits both 9x3 and 9x4 hook and side lock arm types. Their spring steel beam structure delivers uniform pressure to help provide a clear wipe, and they are engineered to conform to today's highly curved windshields. These hybrid blades look and function like original equipment while sporting a high-strength polymer shell that helps safeguard the blade from the elements for all weather performance. Testing has been performed over 500,000 cycles. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional. WARNING: CA Prop 65 - Cancer and Reproductive Harm