The CIPA Custom Towing Mirror is durable, aerodynamic and sleeve-fitted to your vehicle's specifications. These mirrors will slide snugly over your vehicles existing rearview side mirror and feature an additional adjustable mirror on the outboard end that extends your towing vision without obstructing your existing vehicle mirror. No tools are required and no marks or holes are left on your vehicle. Fits standard mirrors only for the models indicated: 1997-2004 Ford F-150, F-250 Light Duty; 1997-2002 Ford Expedition; 1997-2002 Lincoln Navigator. Note: This mirror fits contour-style mirrors only, will not fit mirrors with signal or STX-style mirrors. Will not fit 2004 pickups with new body style.