Camco's Clamp-On Dual-View Towing Mirror gives you more visibility when towing. It reduces blind spots and provides safer driving while you tow. It features two independently adjustable mirrors for better coverage and an aerodynamic design for less road vibrations. This 8-inch x 5 ½-inch mirror fits both the driver or passenger side mirror. Adjustable rubber straps fit around any mirror between 7- and 10-inches tall and can be tightened or loosened with a thumbscrew adjustment. No tools are required for installation.