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 interior appearance of your vehicle. Easy installation – the new knob simply slides into place in seconds; ensure the mounting stem from the previous knob is still 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 not specified), 2009–2013 (model not specified), 2007–2013 1500, 2007–2014 2500 HD, 2007–2014 3500 HD, 2007–2014 (model not specified), 2007–2014 XL, 2007–2011 Escalade, 2009–2013 Enclave, 2009–2013 Acadia (Excludes 2007 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: Lighting effects and display settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3cm.