Akonza Adjustable AB Back Bench Hyperextension Exercise Abdominal Roman Chair, Foldable, Gray Can be used for multiple exercises to work lower back, abs, obliques and hamstrings Size of the pad: 16"(L) x 12"(W) Targeted Muscle Area: Upper Back, Obliques, Lower Back, Back, Abs, Hips Adjustable Height: 28'' - 33-1/2'' (5 levels adjustable) Overall Dimension: 24"(W) x 41"(L) 28"-33"-1/2"(H)