https://www.preclinic-sim.com/products/respiratory-endoscope-training-model/ This model is mainly made of soft silica gel, which is used for surgical training related to interventional diagnosis and treatment of respiratory endoscopy, performance tests, and function demonstration of surgical instruments. Surgical instruments involved include a laryngoscope, bronchoscope, bronchoscope, endotracheal intubation, biopsy forceps, brush forceps, and other instruments.