The Yakima Q Towers are used to mount Yakima crossbars to vehicles that have a naked roof (no factory tracks or rails). Die-cast interior offers a solid anchor while the ball-and-socket mechanism adjusts to all contours of your vehicle. Add vehicle-specific Q-Clips to ensure a seamless custom fit to your vehicles doorframes (sold separate). die-cast interior, ball-and-socket mechanism, no drilling required, Q Clips required, GTIN: 0736745001247, Model Number: 8000124, Product ID: 187950, Model Year: 2014, Bar/Clamp: Clamp, Mount Type: Roof