This 2-times life-size giant heart allows for very easy identification of all structures and is a perfect aid for lessons in big classrooms or lecture halls. The anatomy of the human heart is shown in great detail with ventricles, atriums, valves, veins, and the aorta. The front heart wall can be removed to reveal the chambers and valves inside. Has removable upper section of the esophagus and ascending aorta, as well as the trachea down to the bifurcation. Additionally, the front heart wall and the atrium walls can be removed. Comes with a removable base and a multilingual keycard. 12-5/8" x 7" x 7".