Made of high quality silicone, tolerate high temperature, not cracked.It can replace the common nasal cannula, avoid direct contact with the nostrils, external use of nasal oxygen dispersion, cleaning and sanitary.Used repeatedly for a long time, avoiding the unnecessary waste of disposable nasal pipettes.Also can adjust the oxygen size for most oxygen generators.Applicable to 8mm oxygen outlets oxygen concentrators.Oxygen Nasal Cannula only, other accessories demo in the picture is not included.100% brand new and high qualityMaterial: SiliconeLength: app.2mColor: whiteQuantity: 3 SetPackage Includes:3 x Oxygen pipeOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.