High quality 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 most comfortable state. Good compatibility: good compatibility, suitable for all of oxygen equipment, easy to install in most 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: white Material: silicone Package Contents: 2 * Nasal oxygen tube Only 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 . The measurement allowed is +/- 1-3cm.