2003-2007 Cadillac CTS Polished Stainless Steel Pillar Posts This set of pillar posts is made of mirror-polished stainless steel. The pieces adhere to the pillars of the car with 3M automotive adhesive. It is available in 4Pc. or 6Pc. set, which you can select in the shopping cart. Usually ships: Within 1 business day	Your Price: $55.00 4Pc. $75.00 6Pc.