New, unused Yakima HD Cross Bars with t-slots top and bottom for mounting items. 66” long. Purchased this pair to try and reduce the height of my roof top tent so it would fit in the garage but it did not work out.
https://yakima.com/products/hd-bar
Also, If you happen to have a 5th generation 4Runner I also have a pair of Cali-Raised brand cross bars that bolt in between the factory side rails (super easy installation). $150 for the Cali-Raised cross bars.