With defect of atrium and ventricular septum, Ductus Botalli, enlarged approx. 3 times, in SOMSO-Plast. The typical feature of the congenital anomaly is for the aorta to arise from the anterior (right) cardiac chamber (ventricle). In one piece, removable from base. Height: 18 cm., width: 12 cm., depth: 14 cm., weight: 450 g.