Features: high quality Disposable oxygen mask,it is convient to use for health hygiene,no need worry bacteria breeding . High concentration high flow oxygen therapy,comfortable use by the patient - lightweight,portable,it can improves oxygen efficiency and patient comfort transparent tube with flexible universal connecting tip,it is suitable for all kinds oxygen equipment. High quality material , it is made of PVC material , durable ,healthy ,you can use at assure . Oxygen mask with flexible tube to assist breathing and is specially designed for high concentration oxygen therapy. Non-rebreathing masks deliver oxygen concentrations of oxygen. The oxygen mask with adjustable elastic rope ,it is easy to wear ,convenient to get a comfortable . Specifications: Material:PVC Note: Please allow 1-2cm errors due to manual measurement. Due to the difference betweeen different monitors,the pic may not reflect the actual color of the item. Package includes: 1 Set Oxygen Mask Include: 1 Piece Oxygen Mask 1 Piece Tube