Rhino Rack VORTEX AERO BAR 1500MM BLACK

for $74.00 do I get 1 or 2 bars in the box?

Will these bars fit on the thule xsporter rack system? and how wide are these bars?

What size do i need for a 2015 toyota sienna le?

I bought the heavy duty ja6356 kit but found out the bars are not compatible with my thule box. can these bars replace the square ones i have? size?