Reliable Compatibility: Wax guard filters are compatible with a wide range of devices from Resound, Widex, and Unitron, making them suitable for most CIC, ITE, and ITC hearing aids, ensuring a hassle-free experience. Function: Hearing aid supplies help prevent earwax, dust, oil, and moisture from clogging the device, protecting your hearing aid and extending its service life. Keep your hearing aids clean and your ears healthy. Easy to Use: Hearing aid cleaning tool accessories are easy to operate. Use the removal end to take out the old filter, then install the new filter. Important Notice: If you have a perforated eardrum, do not use wax guards. Regularly changing these filters ensures consistent sound quality and reliable hearing aid performance. Color: White & Black Material: Plastic Package Contents: 5 packs x Wax Guard Filters Note: Only the items listed above are included. Other products are not included. Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.