The Thule Hull-a-Port Aero is an innovative kayak carrier that's easy to use and integrates seamlessly with Thule roof rack systems. It folds down out of the way when not in use. Easy, tool-free mounting hardware. Theft resistant design keeps carrier securely attached to load bars, locks included. Durable soft rubber padding protects your kayaks. Install around Thule Square Bar; adapter required. Quickly folds down out of the way when not in use with the convenient release handle. Integrated Strap Catch lets you easily manage load straps while strapping down your kayak. Installs directly into the Thule Wing Bar or Aero Blade T-track. Made in the USA. Thule 849 Hull-a-Port Aero Kayak Carrier Black, Rubber