These airways are built for optimum patient comfort with it's swivel grip that allows for most comfortable positioning. The safety grip can be rotated 360 degrees and placed without blocking the free nostril. The airway is ideal when oral passage is not accessible, and allows for nasotracheal suctioning. It's rounded edge, combined with the angle cut design, helps reduce the risk of injury during intubation. Made of medical grade PVC, the airway has a reduced risk of reaction. 4mm to 9mm. One Pc.