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Towing a wide trailer means your factory mirrors often can't see around it. These Snap & Zap extensions from K Source clip directly onto the factory mirror housings on 2019-2024 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks, molded to match the factory shape so they don't look like an aftermarket add-on.
Remove them when you're not towing and the truck looks factory-stock again.