Our pliable, clear, patent trachea is mounted on a display base for demonstration, training, and display. Base has a removable clear protective cover and a stent holder for display of your stents. Trachea begins distal to the cricoid cartilage and ends distal to the bifurcation of the main bronchi. Trachea has crenellations representing the tracheal cartilages, with an average ID of approximately 15.5mm. The base measures 8″ x 12″.