A. The waterproof and oilproof filter helps prevent earwax or water from staying inside, which may contribute to prolonging the service life of the hearing device. B. It is made of ABS material, which is safe, eco - friendly, firm and stable, and may ensure durability over time. C. It is easy to install, which enables older people or other groups to use it conveniently. D. It is suitable for WIDEX hearing aids and is a practical and necessary hearing aid accessory. E. There are 8 pieces of earwax guards available, which can meet replacement needs. They are lightweight and portable. Specification Item Type: Hearing Aid Earwax Guard Material: ABS Applicable Hearing Aids: For WIDEX How to Use: Take out the old earwax guard with a net remover, clean the bell mouth, use the other end of the net remover to clamp the earwax guard, install it into the bell mouth, and gently test whether it is firm and not loose. Package List 1 x Box of Hearing Aid Earwax Guard (8pcs) Note 1. A small brush can be used to clean the hearing aid earwax guard. 2. The earwax guard can be replaced once every six months to a year according to the condition of earwax. 3. After installing the earwax guard, it is advisable to make sure that it is firmly installed to avoid falling into the ear canal.