This soft and comfortable headband enhances your sleep therapy comfort and is designed for users seeking a secure, all-night fit. This headband for and F20 full-face masks is a reliable replacement for the original headband. It's ideal for replacing worn, stretched, or damaged headbands, restoring a proper fit and seal without needing to buy a new mask. Soft, Skin-Friendly Material: Made from smooth, high-quality elastic fabric, it reduces pressure points and skin irritation for a more comfortable sleep experience. Adjustable Elastic Design: Multiple adjustment points allow you to easily tighten or loosen the headband to accommodate different head shapes and sizes for a personalized, secure fit. Stable Mask Support: Provides strong yet gentle support to keep your or F20 mask firmly in place, helping to maintain a tight seal and reduce air leakage. Color: As Shown Material: Nylon Package Contents: 1 * replacement headband 1 * magnetic buckle 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.