An exercise device which can be used to exercise the abdominal muscles of a user includes a base to which a lower body exercise portion and an upper body exercise portion are pivotably connected. The portions are hinged to provide versatility and to permit the device to be folded for storage. Wheels are swivably connected to the device and support the device on a support surface for use. The hinges, pivot connections and swivel wheels permit the device to be placed in a wide variety of orientations and positions whereby a wide variety of exercises can be performed.