large frame system, small wide cushion - 63365. Replacement AirFit F30i Full Face Interface frame with selected cushion size. . Headgear is available separately. . The swivel elbow (included) can be removed easily just by pinching in. This allows for a quick removable of your tubing in a moment's notice. . The frame itself is made of a soft silicon. Two tubes on both sides of your face form the frame and allow airflow from the top of the head to the cushion (included) at the bottom of the frame. Clips at the bottom of the frame click easily into place on the F30i cushion size of your choosing. . The F30i cushion is practical a hybrid between a nasal and full face interface making in in a league all it's own. It comfortably fits underneath the nose and vents air into the user's nasal passage. However, it still fits over the patient's mouth. . Features . Top-of-head hose connection with 360 degree Swivel