... for sanitary replacement of earphone cover, stethoscope cover, microphone cover, telephone coverFeature: disposable, economical, convenient, comfortable, non-toxic, dust-proof, ... hygienicMaterial: 25g. - 50g. polypropylene non-woven fabric or SMS fabricProduct use: This is a health and sanitation product to be used ... other contaminants when multiple employees share the same headset. Single use only.