Only the basic function is required: attach the small hook to the elastic band of the mask. Just like a spectacle frame, just slide it over your head and wear it like a necklace. Use with existing earmuffs or headband
When not in use, wrap the mask tightly around your neck-perfect for running, eating, talking or calling-it won't be tangled like a belt.
Disposable and reusable, suitable for all occasions-when buying spices and restaurant food, it can be used with disposable or cotton masks.
Reusable, lightweight and practical, the size is suitable for everyone, and the adjustable buckle is suitable for men and women of different sizes. (5 packs in random colors)