Large value: The belt price is too high, and you need to replace it every few months. Super comfortable headphones: made made of high-quality elastic fabrics to its comfortable and soft. Combining and fit, bring you uninterrupted night sleep. Super elastic: The elastic fabric headhole design is suitable for your head. The split strap can be widened to obtain a more relaxed fit, and it can also narrow together to obtain a more close sense of fit. The gray side outward, the blue side is inward, there is no rough feeling, and it is comfortable to wear. : Our headband is very soft, flexible, and . It is made of high-quality nylon to long-term use. Successive materials provide additional durability and have 10 magnetic clips. Easy care: Our straps can be easily cleaned with mild soap, rinse, and dry every week. Do not wash your head in the washing machine or dishwasher. The hood should be replaced every 3-6 months to that we wear and seal each time it is . Colour:Gray & Blue Material:Polyester Package Contents: 50 x CPAP Headgear 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.