RARP-10 Rubber Head And Ear Loop Stopper Adjuster (packet of 7200 pair)

 these are High Quality Stopper & Adjuster 

Adjuster is made of rubber for having the better grip on the Ear loop or Head loop of the face mask.

Stopper/Ring is in Plastic so as to give the steady stoppage to the adjuster while adjusting the size of the Ear loop/Head loop