All stainless steel and brass construction Heavy-duty component design Chrome-plated solid brass motor shaft mount Adjustable length is secured with stainless steel screws Adjusts from 12" - 17" Pantographic arms keep the wiper blade in more vertical orientation, providing a wider and flatter sweep pattern Riveted tip for extra strength Features Articulating/Bend Back design that locks arm in upright position for windshield cleaning Motor shaft mount with setscrew for secure installation and operation 5-year warranty