The CIPA Custom Towing Mirror is durable, aerodynamic and sleeve fitted to your vehicles specifications. These mirrors will slide snugly over your vehicles existing rearview side mirror, and features 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 years indicated: 1999-2006 Chevy/GMC Silverado, Sierra; 2000-2006 Chevy Tahoe, Suburban, Avalanche; 2000-2006 GMC Denali, Yukon XL; 2000-2006 Cadillac Escalade. Note: CIPA Custom Towing Mirrors WILL NOT fit onto stock side view mirrors equipped with additional lighting features that are not integrated, such as LED turn signals, automatic dimming, and puddle lights. Please review fit chart to ensure fit before placing an order.