Sold as a Pair. The Jawz2 adapter brackets with a gentle V-profile can secure to both wing style and aero shaped load bars, as well as Yakima round bars, Thule and Malone square load bars. Screws Holes are 4.25 inches on center. Sold in sets of two. NOTE: Does not fit Malone MPG121 Paddle Carrier (use replacement hardware kit #2027).