High material: oxygen tube made of high elastic silica material, elastic, no deformation, no cracking, long service life, high temperature resistance.Humanized design: can be adjusted to the appropriate position, let you find the comfortable state.Good compatibility: very good compatibility, suitable for all of oxygen equipment, easy to install in models.Small size: detachable nose, hygienic, economic and environmental protection.Size: . 2 m /78.7 in.Easy to clean: the water can be removed to collect water droplets on the inner wall of the oxygen tube for easy cleaning.More security for users.Colour: whiteMaterial: siliconePackage Contents:2 * Nasal oxygen tubeOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.