Durable Design with Sealed Edges: We've thoughtfully re-engineered our replacement headgear to include closed edges, preventing material separation and enhancing overall durability. This ensures a longer-lasting use and reliable performance throughout its lifespan. Perfect Compatibility: Specifically designed to seamlessly fit with for Airfit N30i and P30i CPAP nasal masks, this strap offers a budget-friendly alternative that mirrors the functionality of old parts, guaranteeing an equally efficient performance. Enhanced Comfort with Smooth Interior: Constructed without seams, the headgear strap boasts a smooth, uninterrupted interior surface. This meticulous design choice significantly boosts comfort, reducing the risk of discomfort or skin irritation during prolonged use. Adjustable Fit for Secure Usage: allowing for easy adjustments to accommodate various head sizes. This flexibility ensures a snug fit, enhancing mask stability and minimizing air leaks for effective therapy. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Gray Material:Nylon Lycra Package Contents: 3 * Headgear Strap Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.