Dynarex's oral airways kit contains 6 different sizes, 1 of each size 43mm, 60mm, 90mm, 100mm, 110mm. Berman-type and disposable. Provides superior performance with unobstructed passage - unique perforated (vented), midway openings assure ventilating channel and permit access of a suction catheter even if airway shifts or is partially occluded. Strength - reinforced bite block prevents collapse of airway, flexibility - smooth, non-brittle finish permits easy insertion without danger of breaking when distorted. Less trauma - greater accessibility of suction catheter permits removal of secretions at a faster rate.