Mad River BWCA Universal Yoke - Tandem
Here's what other sites are saying:
"Especially useful on canoes with center seats, this easy to install and easy to remove ash yoke fits a variety of tandem canoes. Comes with closed-cell foam-lined, contoured shoulder pads that can be angled to adjust the fit for comfortable portaging. Quick Mount yoke hardware included. Fits up to 37"" (measured from inside edge of one gunwale to the other)."