Features： 1、Waterproof and oil?proof filters can prevent earwax or water from staying inside, thus extending the life of the hearing aid equipment. 2、Easy to install, ensuring ease of use for older or other groups, practical accessory. 3、Prevent earwax dust and other foreign matter from blocking the horn. 4、Extended the service life of hearing aid, including 8pcs of the packaged to meet your needs. 5、High quality plastic material manufacturing ensuring maximum durability. Specification： Item Type: Hearing Aid Wax Guards Material: Plastic Hole Diameter: Approx. 2mm / 0.08in Suitable for hearing aid: For Oticon Usage: Take out the old hearing aid wax guards with the net, clean the bell mouth, use the other end of the net to jam the hearing aid wax guards, load the bell mouth, gently test whether the wax is firm or not Notes: 1. Always clean hearing aid wax guards with a small brush 2. Replace hearing aid wax guards once every six months to once a year according to earwax conditions 3. Be sure to install firmly after installation to avoid falling into ear canal Package List： 1 x Box of Hearing Aid Wax Guards (8pcs)