Designed as a direct replacement for your lost or broken knob (reference number: 22912547) This knob is for the rear audio controls located on the back of the center console; it is not the larger knob for the radio in the dash Features a black textured grip with a chrome ring on the knob face to match the original look and restore the appearance of your vehicle's interior Easy installation – the new knob simply slides into place within seconds; ensure the mounting stem from the previous knob is intact Specifically designed to fit: 2007–2013 1500 2007–2014 2500 2007–2011 1500 2007–2011 2500 HD 2007–2011 3500 HD 2007–2009 model 2009–2013 model 2007–2013 1500 2007–2014 2500 HD 2007–2014 3500 HD 2007–2014 model 2007–2014 XL 2007–2011 Escalade 2009–2013 Enclave 2009–2013 Acadia (Excludes 07 Classic Body and Sierras) Color: Black and Silver Material: Plastic Reference Number: 22912547 Replacement Rear Audio Control Knob Size: 15 x 25mm Package Contents: 4 x Knob Note: The package includes only the items listed above; other products are not included Note: Light reflection and differences in display screens may cause slight variations in color between the product image and the actual item Measurement may vary by +/- 1-3cm due to manual measurement