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.