Compatible with ResMed AirFit N30i and AirFit P30i nasal pillow mask systems. Designed to provide a secure and stable fit for compatible frames. (Mask and frame not included.) Secure & Adjustable Fit - Fully adjustable strap allows you to customize tightness for a secure hold without excessive pressure, helping maintain mask position throughout the night. Soft & Comfortable Material - Made from soft, skin-friendly fabric designed for extended wear. Lightweight construction helps reduce discomfort and pressure marks. Easy Installation - Simple to attach and remove for quick replacement. Ideal backup straps for travel, home, or regular maintenance. Cost-Effective 2-Pack - Includes 2 replacement headgear straps for convenient rotation and long-term use, helping extend the life of your CPAP setup.