Stay There Roof Rack Universal 54'' Adjustable Aluminum Roof Rack Cross Bars with Key Lock (2 Pieces) Mounts to The Rooftop of Your Car or SUV | Raised Side Rail Gap NeededRFQ: Q: How many kinds of Roof Types are in Market?A: Roof comes in different commonly used types, Naked Roof, Raised Side Rails, Flush Side Rails, Gutters and Fixed points and so on.Q: What is the Raised Side RailsA: Raised side rails are the rails running from front to back on your vehicle which have space between the side rails and the vehicle. There is enough of a gap that you could slide your hand underneath.Raised roof rails are typically on SUVs of all sizes and on some station wagons you don't see many on sedans.Q: Can Stay There's Crossbar fit my vehicle?A: Stay There's Crossbar system comes with two main components: the rack cross-bars and the rack towers (sometimes called stays or feet).Stay There's Crossbar will fit Raised Side Rails with at least 1/2’’ Gap.Q: What is the specification of Our Stay There's Crossbar?A: The total length of Crossbar is 54’’Can be adjusted from 34.5'' up to 49.5'' width of rack railsQ: How to lock Crossbar system?A: Comes with 2 PCS Unique Keys for every Roof Rack Crossbar, no one have the same. Keep the other spare key in your vehicle's Tool Box or ask someone else save it for missing.Includes 2 x bars and 4 x feetFits raised rails 1" to 2" in diameterIncludes 6x end cap for bar, Long Allen Wrench and 2 KEYSNo drilling requiredHolds up to 200 lbs / 90 kgProduct instructions: Download PDF Through User Manual