1. Magic paste, adjustable, Good breathability 2. Good sweat absorption, 3. The flexible and lightweight tube allows the patient greater freedom of movement 4. Simple, effective and award-winning 5. Usage: Ventilator mask. How to wash the product? We recommend hand washing the headgear strap weekly with warm, mild soap, then rinsing well and air drying. Specifications: Material: nylon + plastic Color: gray + blue Package Contents: 12 x Nasal Mask Headgear 24 x High Quality Plastic Clips Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.