Compatible with Oticon MiniFit ProWax filters for 60, 85, and 100dB miniRITE receivers. Not compatible with Oticon custom molded hearing aids. Satisfactory quantity: Each pack contains 6 filters, 5 packs included for a total of 30 filters. Easy to use: Simply use the removal end to take out the old filter, then use the other end to install the new filter. Maintenance and function: Replace wax guards regularly to maintain optimal sound quality. These earwax protection filters help prevent earwax, dust, oil, and moisture from clogging the device, protecting the hearing aid and extending its lifespan. Color: Gray Material: Plastic Package Contents: 5 x Wax Guard Filters Note: Only the items listed are included. Light reflection and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.