Easily attaching to most cars, the Yakima BaseLine Adjustable Clamp Tower System caters to our vehicles without roof rails or gutters. The BaseLine Adjustable Clamp Towers work with Yakima's JetStream, CoreBar, and RoundBar (with adapter) crossbars, delivering a robust platform for carrying all of our gear and equipment. Its Tri-axial DropHook clip suits a wide variety of roof shapes for a secure hold at high speeds.