-Easy to use: after wearing the mask, pull a mask strap hook the extender device, then complete the other side.
-Relieve pressure and pain in the atrium during long-term use of a mask, it is necessary for this special period.
-A convenient thing relieve ear pain and stress from wearing the mask, change the support place instead of fixing it on the ear.
-Adjustable head circumference meets the demand from children to adults, avoiding ineffective use due to loose wear and earache caused by wearing too tight.
Size: about 15.8X1 .. 5cm
Weight: about 5g
✈ Worldwide Delivery from 7 - 15 days.Available Customer Service 6 days a Week.