INCREASED SAFETY. This aerodynamic side view mirror has 8-inch x 17-inch glass to provide you with an extra-wide view and reduced blind spots for safer maneuvering CRACK-FREE TILTING. This semi truck mirror is constructed with a no-rust plastic ball stud for enhanced stability and easy tilt adjustment without risk of cracking the glass MODERN AERODYNAMICS. The aerodynamic design of this truck side mirror reduces drag and wind resistance, promoting better gas mileage and efficiency DURABLE BUILD. RETRAC Aerodynamic west coast mirrors are constructed from black injection-molded ABS plastic and can be painted with a custom color to fully integrate with your truck UNIVERSAL FIT. This west coast truck mirror comes with a universal clamp that fits virtually any 3/4-inch to 1-1/4-inch tube to mount onto a wide variety of heavy-duty and medium-duty trucks (mounting assembly not included)