1. Waterproof and oil-resistant filter prevents earwax or water from getting trapped inside. 2. Extend the life of your hearing aid, specially tailored to the Oticon hearing aid. 3. Protects against earwax and moisture, helps maintain stable operation of hearing aids. 4. Easy to install, convenient to use for the elderly and other hearing impaired. 5. Made from high-quality ABS materials to ensure durability during long-term use. Item Type: Pro Wax Covers Material: ABS Suitable hearing aid: for Oticon How to use: Remove the old earwax covers for your hearing aids with the mesh remover and clean the horn outlet. With the other end of the mesh removal tool, paste the earwax shields into your hearing aids and insert them into the horn mouth. Gently check with your hand whether it is firm or not List of packages: 1 x Box of Wax Hearing Aid Covers Precautions: 1. Often use a small earwax cover cleaning brush for hearing aids 2. Replace earwax covers for hearing aids once every six months to a year, according to earwax 3. Make sure the installation of hearing aid wax covers is solid to avoid falling into the ear canal