Product descriptionMaterial: polyesterSize: 70 * 0.8 cmColour: blackQuantity: 10 pieces ;ckPackage content: 10 * adjustable windproof rope 1.Convenient Neck StrapThe adjustable neck strap ensures it stays on your neck when you need it. It is very convenient to wear around your neck with straps all day long. You never have to worry about them disappearing when you take them off for a while.2.Adjust Size The adjustable neck strap is suitable for both adults and children. One size fits all (cord length 70cm, width 0.8cm), lanyard can be adjusted at will for maximum comfort and adaptability.3.Super lightYou can hardly feel its weight when you use it. It will not cause any problems for your work and life, no matter it is work, suitable for all people including surgeons, students, teachers, waiters, professional players.4.Simple to useSimply attach the lanyard to the elastic straps on your neck. Like a glasses holder, just slip over your head and wear like a necklace. Works with your existing earmuff or headband.5.Comfortable and UsefulThis headband is made of high-elasticity polyester fiber, effectively reduce the pain and pressure on the ears for your head. r a long time. It's also washable and reusable.