Premium Soft Comfort: Crafted from high-quality, soft elastic material, these replacement headbands for the F30 offer a gentle touch, enhancing comfort during extended use. Ideal for nightly wear without causing skin irritation. Adjustable Velcro Design: Featuring a versatile Velcro system, these straps provide a customizable fit that seamlessly adapts to individual sizes. This advanced design ensures a secure, snug fit to improve CPAP therapy effectiveness. 2-Pack: Maximize value with our dual-pack of headbands, designed to keep you equipped and ready. Perfect for having a spare for washing or immediate replacement, ensuring your sleep therapy remains uninterrupted. Enhanced Seal Stability: The impeccable design and adjustable fit help maintain an effective seal, drastically reducing the occurrence of air leaks. This stability is crucial for sustaining the efficacy of sleep therapy, ensuring optimal performance. Medium Size for Optimal Fit: Specifically dimensioned for a medium fit, these straps accommodate a wide range of users, providing a tailored experience that enhances comfort and functionality, making them a perfect choice for regular F30 users. Material: Nylon Color: Gray+Blue Package Contents: 2 x Headband Straps Only the above package content is included; other products are not. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowable measurement error is +/- 1-3 cm.