Power Posts will improve the performance of any back band, and they work in most boats. Two high density, semi rigid, pre drilled plastic strips, with mounting hardware, anchor the back band to an adjustable track, keeping the back band at the desired height. Simply mount one end of each plastic strip, to the back of the boat seat, and the opposite end to the center of your back band. Instructions and hardware included. Power Posts come standard with all NSI Anatomic Back Bands