Romsons Flexi oxygen Mask Kit For Adult SH-2020 Key features of Romsons Flexi oxygen Mask Kit For Adult SH-2020: Flexi Mask is designed for convenient oxygen therapy. Moulded face mask is manufactured from non-toxic medical grade PVC. Provided with adjustable strap for proper positioning of mask on the nasal area. Swivel connector for convenience of attachment to the oxygen tube. 210cm (7ft) multichannel tube is provided to ensure continuous flow of oxygen even if tube is accidentally kinked. Proximal end of tube is fitted with soft funnel shape connector for easy connection to oxygen source.