Provides convenience of inner cannula disposability, while permitting patient to breath through upper airway if desired.Shiley Cuffless Fenestrated Tracheostomy Tube with Disposable Inner CannulaSKU: 10DCFNType*SelectQuantity*Contact Us to PurchaseSpecificationsPortex Blue Line Ultra Cuffed Tracheostomy Tubes Specifications Manufacturer: Smiths Medical Sterility: Sterile Material: PVC Includes: Tube, Two Inner Cannulas, Cleaning Brush and Tube Holder Sizes: 6.0mm, 8.0mm, 9.0mm Manufacturer Numbers: 100/875/060, 100/875/070, 100/875/080, 100/875/090