Are manufactured from Zinc plated tubular steel and will expand to fit any width standard vehicle. They are Gutter mounted and come in four height sizes.

5 inch (130mm); 7 inch (180mm); 9 inch (230mm) and 12 inch (305mm)

The height is measured from the top of the Gutter to the bottom of the bar.

Antar Commercial Vehicle Roofracks are sold per single bar.

For more information please read the below printable PDF:
Antar-CommercialRoofRacks.pdf