No rails? No problem. The versatile BaseLine&';s intelligent design and advanced adjust-ability help it morph to the shape of your car&';s roof for a sleek, secure, load-it-up fit. Product Details Secure, easy-to-use tower specifically designed for cars without roof rails or gutters Advanced tower architecture is sleek, strong and quiet Sleek tower cover styling with matte black finish to match modern vehicle styling Works with Yakima JetStream, HD Bar, CoreBar and RoundBar crossbars Tri-axial DropHook(TM) clip adjustment easily adjusts to a wide range of roof shapes for safe, secure hold BarBed(TM) has 12Adeg of pitch adjustment to optimize tower position and level bars on rounded roofs Super-simple installation - tool included Maximum load rating of 165lbs (75kg), depending on vehicle and bar rating Easily locks to you vehicle with our SKS system (sold separately) RoundBar SL Adapter required to use Yakima&&';;s classic RoundBar (sold separately) HD Bar SL Adapter required to use Yakima&&';;s HD Bar (sold separately) Product Specs Weight: 5.20 lbs. Dimensions: L 5.00 in x W 6.00 in x H 4.00 in