The Vortex Quick Mount RLT600 roof rack system is attached to the factory tracks on your vehicle's roof. It can be easily removed when not required using a simple trigger locking system. Utilizing our highly regarded Vortex bars, this system offers you compatibility with a wide selection of Rhino-Rack accessories. So whether you're a traveler, kayaker, surfer, cyclist or contractor - the Vortex RLT600 roof rack system has you covered., FEATURES: No tools required for installation and removal once system has been initially fitted. Ideal for low clearance. A lockable cover plate that protects the locking mechanism, Masterkey compatible. Fits the Rhino-Rack Vortex Bar, with a fitting kit available for the Heavy Duty Bar and Pioneer models. The base and leg allows for 33 degrees of swivel to suit tracks mounted on a contoured or curved surface. The great benefit of this roof rack system is the ability to slide your cross bars along the track to accommodate various sized loads. Single person operation allows quick and easy attachment. Simple trigger locking system. Having a trackmount system allows for a heavier load rating. Tested to AS1235:2000 (Australian), ISO11154:2006 (City Crash/International) standards. Lifetime Warranty.