Comfortable: Made of sturdy, lightweight, breathable soft fiber fabrics, the f10 headgear boasts extra softness. Its stretchy and smooth interior surface, along with stronger Nylon Sticker straps will hold your mask in place. Enjoy better sleep with our headgear Durable: Our replacement headband can be washed repeatedly. Don't need to worry about f10 supplies' fraying, curling, shedding, delaminating, or other forms of degradation Convenient: Unhook the Nylon Sticker straps of your old worn headgear from the f10 mask, put the new one on in the same way, position the hole in the back of your head and tighten to keep the mask in place Colour:Gray Material:Lycra+sponge+raised cloth The actual product may have slight color difference or difference, which will not affect the use Package Contents: 1 x CPAP headgear strap 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.