Comfortable Nasal Oxygen Cannula Ear Protector Cannula Headband for Oxygen Concentrator Accessories with Adjustable Oxygen Cannula Ear Protector for Oxygen Users to Prevent Ear SorenessBrand: Wuronsa Color: Black Features: ADJUSTABLE: Adjustable and easy wearing with Velcro, the adjustable range is about 24" 29. 5"(1 2" error possible). You can freely adjust the comfortable position according to your needs. VELCRO LOOPS: There are two Velcro loops on the headband to fix the cannula tube. They can slide on the headband and keep the cannula tube stay away from ears, preventing irritation caused by plastic tubing. NON SLIP: The