?Service Guarantee: We offer 30-day money-back service for any quality issues. Any dissatisfaction with the purchase within that period will be responded with a refund or a replacement. Please don’t hesitate to contact us if you have any question. ?1pc wax guards and dome cleaner : shorter and thinner end is good for daily cleaning earwax in the wax guards, longer and thicker end is good for daily cleaning earwax in the sound outlets of hearing aid dome . ?3packs wax guards : 8pcs wax filters with tools per pack, prevent earwax and moisture from building up near the hearing aids receiver or speaker and prolong the life of your hearing aids as well as reduce your hearing aid repair cost . ?Fine mesh:High quality manufacturing allows for a finer mesh system without compromising performance. ?Our wax guards fits most CIC, ITC, ITE and RIC(RITE or RIE) hearing aids from Phonak, Unitron, Widex and some from Resound, Beltone, Oticon , it does not fit Signia and Starkey hearing aids .