Feature:1. It can prevent earwax or water from staying inside, thereby prolonging the life of the hearing device.2. Made of highquality plastic materials, it can ensure longterm durability.3. Easy to install, ensuring that the older or other groups can use it conveniently.4. It is waterproof and oilproof, wearresistant and durable, not easy to damage.5. Suitable for Phonak and for Resound hearing aids, it is a practical hearing aid accessory.Specification:Item Type: Hearing Aid GuardMaterial: PlasticHole Diameter: Approx. 1.2mm/0.05in Suitable for Hearing Aid: Fit for Phonak, Fit for ReSoundInstructions:Use a net remover to take out the old earwax guard filter, clean the bell mouth, use the other end of the net remover to clamp the earwax guard filter, install it into the bell mouth, gently test whether it is firm or not loose.Package List:1 Box of Hearing Aid Guard(8Pcs)Note:1. Use a small brush to clean the earwax guard filter.2. Replace the earwax guard filter once every six months to a year according to the condition of earwax.3. After installing the earwax guard filter, be sure to install it firmly to avoid falling into the ear canal.