CIPA Custom Towing Mirrors slide over your existing mirror to give you added vision for towing. Aside from the easy installation that requires no tools, CIPA custom towing mirrors leave no marks or holes on your vehicle. They are fully adjustable and do not obstruct your existing mirror. CIPA mirrors are superior because of their quality construction. The mirror casing is made up of a thicker plastic, which makes them extremely durable and corrosion-resistant.  CIPA also maintains the aerodynamic shape of your mirror to prevent wind noise or vibration.