CIPA Custom Towing Mirrors are designed to fit over standard factory rearview side mirrors. The CIPA Custom Towing Mirror is durable, aerodynamic, and sleeve-fitted to your vehicle's specifications. These mirrors will slide snugly over your vehicle's 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. The CIPA Towing Mirrors and installation knobs are made with durable ABS plastic known for its strength, rigidity, and unbreakable security. The mirror face is made with scratch-resistant glass for years of unobstructed towing use.• Slides over existing mirror with wedge lock security• Custom design ensures a perfect fit and no annoying vibration• Easy installation with no tools required• Does not obstruct existing mirror• Sleek custom design complements the existing mirror• Fit 1999-2006 Chevy/GMC Silverado, Sierra; 2000-2006 Chevy Tahoe, Suburban, Avalanche; 2000-2006 GMC Denali, Yukon XL; 2000-2006 Cadillac Escalade Additional adjustable mirror on the outboard end extends towing vision Doesn't obstruct your existing vehicle mirror No tools are required & no marks or holes are left on your vehicle | CIPA 10800 Custom Towing Mirrors, Chevy, GMC, Cadillac, Pair | ABS Plastic