The 3D model of 2 lungs shows the bronchial air passages entering two lungs. The smokefree lung is pink and healthy with air sacs intact. Smoker’s lung is black from tar, has holes burned into the air sacs to represent emphysema and has a cancerous growth and a pool of phlegm. Comes with an acrylic cover and laminated handout called ‘love your lungs’. Ready to hang. Size = 61 x 48.5 x 4 cm