Features of Nasal Oxygen Catheter:designed for Administration of Oxygen, Catheter Made of Implantation Tested Pvc Having Open Distal End with Multiple Eyes to Facilitate Dispersion of Oxygen and Prevention of Oxygen Burn. Color Coded Connectors for Size (fg) Identification Individually Packed. Sterile, Single Use Only. Non Toxic, Pyrogen Free. Ready for Use. Size (fg): 8, 10, 12, 14, 16, 18, 20, 22, 24.features of Umbilical Catheter:manufactured from Soft Medical Grade Pvc. Designed for Intermittent or Continuous Access to the Umbilical Artery or Vein of Newly Born or Premature Infants. Open Distal End Without Lateral Eyes. Proximal End Fitted with Lure Mount for Convenient Connection to Infusion Set. Individually Packed. Sterile, Single Use Only. Non Toxic, Pyrogen Free. Size (fg): 8, 10, 12, 14, 16, 18, 20, 22, 24.