1. Main raw material: polyester2. Without mask3. Solid environmentally friendly polyester thread4. Scope of application: clothing, apparel, daily use5. Durable, can prevent ears and fall off6. The height of the mask on the chest can be controlled by adjusting the buckle7. Lengthen the clip to increase the stability of the rope and keep pulling8. It is convenient to take it off at any time when eating, resting or when there are few people to breathe fresher air9. Width: 3mm, the length of the mask lanyard is 75cm

http://olla.gr/10-pcs-mask-anti-lost-adjustable-lanyard-and-ear-hook-green/