This unit consists of Lobule model and Alveolus model. Magnified lobule shows terminal bronchiole, respiratory bronchiole, alveolar epithelium, etc. 25 positions are displayed. Magnified alveolus shows alveolus, alveolar epithelium, alveolar saccules, alveolar ducts and alveolar capillary. 10 parts are displayed. Mounted on base with stand. Size: 28 x 21 x 14.5cm Weight: approx. 2.5kg