ACDelco 8-71511 Professional Heavy Duty Black Wiper Blade for Flat Windshields, 15.00 in (Pack of 1) Durable design allows it to be used on heavy duty trucks, school buses, etc. Comes with an adapter package, allowing it to be installed onto a competitors wiper arm Professional, premium aftermarket replacement Provides the performance and dependability you expect from ACDelco Manufactured to meet expectations for fit, form, and function