1. Main raw material: polyester 2. Without mask 3. Solid environmentally friendly polyester thread 4. Scope of application: clothing, apparel, daily use 5. Durable, can prevent ears and fall off 6. The height of the mask on the chest can be controlled by adjusting the buckle 7. Lengthen the clip to increase the stability of the rope and keep pulling 8. It is convenient to take it off at any time when eating, resting or when there are few people to breathe fresher air 9. Width: 3mm, the length of the mask lanyard is 75cm
