Aura-i is the preferred device for establishing an airway when an ET-tube is deemed unnecessary or when unexpected difficulties arise in connection with airway management. It can also function as a conduit for an endotracheal tube in cannot intubate – cannot ventilate situations (CI-CV), as well as situations where is it necessary to place an endotracheal tube after insertion of the Aura-i. The Different Sizea are 1, 1.5, 2, 2.5, 3, 4, 5, 6.