This convenient mask lanyard is a simple but safe strap with an adjustable buckle, so it is suitable for anyone. Universal Mask lanyard： When you have a rest , will your masks fall off? When you are ready to eat, is your masks nowhere to be placed? Can't you find mask holder that fits your child's head size? You can choose XuanF's adjustable mask lanyard, we can solve all your troubles for you. Not easy to fall off, suitable for all types of Masks. Premium Quality Materials： This mask straps made from premium quality woven polyester fabric and, The material of our mask holders around neck will not irritate your sensitive skin even if you wear your mask all day. 100% Quality A-s-s-u-r-a-n-c-e : 1. We provide you with quality products and comprehensive after-sales service. 2. Our products have long-term quality assurance, please rest assured to buy. 3. If you have any questions, please feel free to contact us by email, we will give you a satisfactory answer within 24 hours. Instructions For Use: Hang the mask strap hook on the mask ear strap, and adjust the tightness freely according to the size.