High quality stainless steel construction, with chrome-plated brass motor shaft mount Heavy-duty component design Adjustable length is secured with stainless steel screws Riveted tip for extra strength Features Articulating/Bend Back design that locks arm in upright position for windshield cleaning 5-Year warranty Heavy duty construction provides the strength to drive larger wiper blades Motor shaft mount with setscrew provides for secure installation and operation Adjusts 10" - 15" Use only with AFI-2000 and MRV motors