Feature 1Clean Ear Wax: Waterproof and oil proof filters prevent earwax or water from becoming trapped inside the hearing aid, thus extending the service life of hearing equipment. 2Replacement Accessory: Easy to install, ensuring easy use for older or other groups. Clean your hearing aid effectively and bring you wonderful using experience. 3Applications: Suitable for for Phonak, for Widex, for Resound, for Unitron, widely applications to meet different demands. 4Aperture: About 0.1in hole diameter of the hearing aid wax guard, sustainable use, environmental protection and durability. 5PP Material: Made from high quality materials, it ensures durability for long time use, come with storage box of the package for easy carrying.SpecificationItem Type: Hearing Aid Wax GuardMaterial: PPAperture: Approx. 2.5mm/ 0.1inSuitable for: Suitable for Resound, for Phonak, for Unicon, for Widex (not suitable for Starke, for Siemens and other brands) Usage: Use a net lifter to take out the old wax guard and clean the bell mouth. Use the other end of the net lifter to stuck the wax guard and load it into the bell mouth. Use hand to gently try whether it is firm or not. .wang-edit-text{ font-family:'Arial' important; } .wang-edit-text table { border-top: 1px solid 000; border-left: 1px solid 000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000; border-right: 1px solid 000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Storage Box8 x Hearing Aid Wax GuardNote1. Always use a small brush to clean wax guard 2. Replace wax guard half a year to one year according to earwax 3. After installing wax guard, make sure it is firmly installed to avoid falling into the ear canal