... makes this the perfect tool for chin-ups and pull-ups. Place this exerciser bar on the ground ... in mid air to further strengthen your core abs!pull up bar is the multi function training bar that ... is so versatile, one piece of equipment to do pull/chin ups in 3 grip positions (narrow, neutral, ... doorway into a personal gym; installs in seconds ideal for pull-ups, chin-ups, dips, crunches, and more three ...