Feature: 1. FLEXIBLE ROTATION: Elbow 360° flexible rotation, 45° articulated three dimensional rotation, reduce the pulling of turning over at night, considerate design. 2. FIT WELL: Provides smooth touch and great stability, achieve comfortable and effective sealing, conform to ergonomic design, fits the facial structure. 3. FITMENT: Fit for ResMed Mirage Quattro face guard system, great replacement for the old or broken one, easy to install and remove. Multi vent connection holes, balance internal and external airflow pressure. 4. MULTIPLE APPLICABLE PLACE: Important and necessary accessory for breathing machine nasal cover. Light weight and compact, easy to carry, suitable for home and hospital. 5. ABS MATERIAL: Nasal guard frame system adopts ABS material, without any harmful substances, safe and secure, lighter in texture, firm and sturdy, wear resistant. Specification: Item Type: Nasal Guard Frame System Material: ABS Fitment: Fit for ResMed Mirage Quattro face guard system. Package List: 1 x Nasal Guard Frame System