Made of ABS material, our wax guards can effectively prevent earwax buildup for a clearer sound.Is Discontinued By Manufacturer:NoPackage Dimensions:3.15 x 1.85 x 0.63 inches; 0.71 ouncesDate First Available:August 31, 2023Manufacturer:Jungle CareASIN:B0CGZJ2319 Compatible with: Phonak & Unitron SDS 4.0 receivers, including Phonak Marvel, Phonak Paradise, Unitron Blu, Unitron Discover, Unitron Discover Next. CeruGuard Disk wax guards is NOT compatible with older model hearing aids and older receivers before 11/2018. Our product comes with 3/6 pack per order which equals out to a total of 24/48 filters (8 filters / pack) Easy to use : 8 wax guards per disk with easy to use dispenser wheel Built for Durability: Our wax guards is made of high-quality ABS material, making it eco-friendly, durable, and wear-resistant. This sturdy and stable accessory will last for a long time and help maintain the quality and performance of your . Maintenance: Audiologist suggests the wax guards should be replaced half a month, to keep your hearing aids at the best performance without wax. If you have oily ear canals, you will need to replace the wax guards more often to keep your hearing aids clean.