The Rightline Gear Replacement Car Clips allow you to use any previously purchased Rightline Gear Car Top Carrier on vehicles WITHOUT a roof rack. Replace lost Car Clips or add Car Clips to Carriers that originally did not have them included. Add the Clips to the ends of the carrier&';s straps and attach them under the vehicle&';s door frame weather molding. The vehicle&';s doors close over the attachment straps. The coating on the Clips prevents any damage to the vehicle.