Designed as a direct replacement compatible with your lost or broken knob (reference numbers: 22912547 or compatible with 22912547)<br> Please note this is compatible with the rear audio controls on the back of the center console; this is not the larger knob compatible with the radio in the dash<br> Black textured grip, chrome ring on knob face to match the stock look and restore the look of your vehicles interior<br> Easy installation; new knob just slides into place within seconds just make sure there is left from the previous knob<br> Designed specifically to fit: 2007 - 2013 compatible with 1500 / 2007 - 2014 compatible with 2500 / 2007 - 2011 compatible with 1500 / 2007 - 2011 compatible with 2500 HD / 2007 - 2011 compatible with 3500 HD / 2007 - 2009 compatible with / 2009 - 2013 compatible with / 2007 - 2013 compatible with 1500 / 2007 - 2014 compatible with 2500 HD / 2007 - 2014 compatible with 3500 HD / 2007 - 2014 compatible with / 2007 - 2014 compatible with XL / 2007 - 2011 compatible with Escalade / 2009 - 2013 compatible with Enclave / 2009 - 2013 compatible with Acadia. (Excludes 07 Classic Body /Sierras)<br> Color: black + silver<br> material: plastic<br> Reference Number: 22912547.<br> Replacement Rear Audio Control Knob.<br> Size:. 15 x 25mm<br> Package Contents:<br> 4 x knob<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.