The Respirator Mask Headgear Strap is designed for F20 CPAP Masks, providing a secure and comfortable fit during use. Made from durable nylon, it ensures a long-lasting and reliable solution for headgear replacement. The lightweight design adds to user comfort, allowing for a peaceful sleep experience. This headgear strap is an essential accessory for maintaining the effectiveness of respiratory therapy. Please note:There is a slight color difference or difference in kind, it does not affect the use, please do not mind, thank you Feature:Durable, Lightweight, Adjustable Colour:Gray Material:nylon Package Contents: 1 * F20 headband 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.