characteristic: More convenient - let your ears rest and breathe more easily - keep your face protectors clean and close - don't risk getting your mask dirty or throwing it in your pocket It's exactly what you need for important employees - clip a small hook onto the elastic on the mask. Like a glasses holder, wear it on your head like a necklace. Suitable for your existing ear protector or headband When not in use, put the mask on your neck safely - it is very suitable for making mistakes, biting, talking or making phone calls with a long social distance - it will not tie like wearing a heavy Bulldog or a clip One size suitable for everyone, disposable and reusable masks can be used simultaneously - used with disposable masks or cotton masks when shopping at grocery stores or dining in restaurants Handsfree - Free - Lightweight - Comfortable - Once the size fits everyone, the adjustable buckle makes it the perfect choice for men and women of all sizes. Length: 70cm/27.55 inches