... -50g. polypropylene non-woven 2. earphone dust cap, mike cap, headphone capDISPOSABLE PP EARPHONE DUST CAP:Destination: barrier protection for sanitary replacement ... , microphone cover, telephone coverFeature: disposable, economical, convenient, comfortable, non-toxic, dust-proof, replaceable, clean and hygienicMaterial: 25g. - 50g. polypropylene non-woven fabric ...