With an extra-wide base that eliminates rocking, the Body-Solid Powerline Roman Chair and Back Hyperextension is great for exercises that focus on your abs, back, glutes and hams, including ab crunches and back extensions. The 2" x 2" heavy gauge steel construction and an electrostatically applied powder-coat finish offer durability. Body-Solid Powerline Roman Chair and Back Hyperextension - Weight Benches at Academy Sports