Package Included: 1*glasses chain Specifications: Product Name: Eye Chain Length: 58cm, Button: 3.5cm Main material: Acrylic Product weight: about 20g Product packaging: opp Description: Super convenient and convenient Let your ears relax and breathe easily Keep your face protection device clean and close to you Don't risk getting the mask dirty or throwing it away, put it down or tuck it into your pocket Just the important employees you need Clip the small hook to the elastic strap on the mask. Just like the eyeglass holder, you can wear it like a necklace just by putting it on your head. Will be used with your existing ear protectors or headband Wear the mask safely around your neck when not in use Ideal for running errands, eating, socially distancing, talking or making phone calls One size fits everyone and works with disposable and reusable masks Use with disposable masks or cotton masks when shopping in grocery stores and dining in restaurants Once the size fits everyone, the buckle can be adjusted to make it suitable for men and women of all sizes. Very suitable for nurses, doctors, teachers, waiters, bartenders, dental hygienists, dentists, dining out, basic staff, medical care, government, security, police, etc. Notes: Due to manual measurement, there may be an error of 1-2 cm, please understand. The color difference may vary depending on the monitor settings. We provide you with the best products and services. If you have any questions, please let us know and we will solve the problem as soon as possible. thank you very much.