8pcs Earwax Filter Long Lasting Hearing Aid Guards For ACOSOUND 1. Waterproof and oil-resistant filter, can prolong the life of your hearing device by preventing earwax or water from being trapped inside 2. Made of quality material, which ensures durability of long time use 3. Mini size, can fit most hearing aids for RESOUND, PHONAK, UNITRON, WIDEX, ACOSOUND, etc. (Do not fit for , ) 4. Easy to install, make sure the older or other groups at ease 5. 8 Pcs / set, can meet your basic demand Specification: This earwax filter is waterproof and oil-resistant, which can prolong the life of your hearing device by preventing earwax or water from being trapped inside. Mini size can fit most hearing aids for RESOUND, PHONAK, UNITRON, WIDEX, ACOSOUND, etc. (Do not fit for , ). Features: 1.Waterproof and oil-resistant filter, can prolong the life of your hearing device by preventing earwax or water from being trapped inside. 2.Made of quality material, which ensures durability of long time use. 3.Mini size, can fit most hearing aids for RESOUND, PHONAK, UNITRON, WIDEX, ACOSOUND, etc. (Do not fit for , ). 4.Easy to install, make sure the older or other groups at ease. 5.8 Pcs / set, can meet your basic demand. Specification: Item Type: Hearing Aid Accessories Material: Plastic Color: As Pictures Shown Item Length: Approx. 4 cm / 1.6 inch Item Weight: Approx. 8 g / 0.3 oz Function: Earwax Guard How to use: 1.Use screenchanger to take out old filter. 2.Clean the edge of the horn on the hearing aid. 3.Use the other end to stick a new filter. 4.Install a new filter and make sure it firm. Package Include: 1* Set of Earwax Filter (8 Pcs)