The Yakima BaseLine Complete One Bar Car Roof Rack with a Steel RoundBar and BaseClips attaches to vehicles with naked, smooth roof-lines. The BaseLine Car Rack is part of Yakima's StreamLine Series product line. BaseLine Towers utilize Yakima's unique bi-axial DropHook clip adjustment to assure a custom secure, streamline fit. Toe adjustment changes the angle of the BaseLine Towers for a perfect fit on vehicles with scalloped roof shapes. A pre-calibrated torque driver is included with the Baseline Towers to ensure the exact tightness level during installation. The Yakima One Bar BaseLine Roof Rack has an option for a single RoundBar or Steel CoreBar, and includes a pair of Yakima BaseLine Towers and pair of BaseClips. Yakima BaseClips are vehicle specific. With the addition of 2 Yakima SKS Lock Cores (sold separately), Yakima BaseLine Towers can be locked to your vehicle.