Berman airways are color coded for sizing identification and feature a vented septum which allows airflow on either side. They are latex free and disposable. We have the color coded options along with plain white ones. Sizes range from 40MM to 110MM. Sold individually in a bag of 12. They are also available in a kit of 6 or 8 pieces. The individually packaged ones come in a plastic bag. The Bernman airway kits come in a plastic case.