-Patented Maxclamp technology provides the most secure attachment by holding the rack to the vehicle with 12% greater force than competitors.-Integrated AcuTight Tensioning Tool automatically indicates when the rack is safely and properly attached to vehicle, assuring the safest and most consistent installation.-Exclusive EZAssembleTM Design features 50% fewer parts and requires half the time to install than competitors, incorporating EasyClickTM Bracket Attachment, OneTouchTM bar lock and the AcuTightTM tool for the easiest, fastest and safest mounting available.-Lockable outer cover with bold, contemporary styling hides and protects foot while blending flawlessly with any roofing.-Secures to roof with THule One KeyTM locks (available separately)-Requires vehicle and TRAVERSE FOOT SPECIFIC FIT KIT (sold separately)