These stainless steel mounting plates (stabilizer plates) firmly secure any integrated harness and soft backplate system such as the Dive Rite TransPac to any set of double tanks that use industry-standard bands and bolts. They are curved to fit the spacing of double tanks, and are the only item needed to connect a soft backplate to a set of double tanks. The soft backplate and the wing end up being sandwiched between the double tanks and the mounting plates, eliminating the need for a metal backplate. Sold as a pair.