Patients can be ventilated with or without the inner cannula in place. Included with each tube is an obturator with an exclusive snap-on feature that helps prevent it from inadvertently falling out during insertion of the tracheostomy tube. The clear, soft, pilable flange allows for maximum patient comfort and anatomical conformity. All D.I.C. tracheostomy tubes come with an obturator, hook & loop trach tube holder, and one colour-coded inner cannula. Fenestrated tube aids in the weaning process and facilitate speech.