Open 4.0 Dome Medium (0.35 inch=9mm) 10 Domes, Hearing Aid Domes Compatible with Phonak Audeo Marvel Paradise Lumity Accessories -1 Pack/10 Domes Total

They fit well

Quick delivery, good product. There is not much difference between the small and medium sizes. Measure carefully.

Fits several different hearing aids!

This worked perfectly for the hearing aid when the top of it popped off. Very easy to install in the size was perfect, exactly like the one that came with the hearing aid.

If you're like me and can't use the custom ear buds with your hearing aids, these are my favorite alternatives. The air holes helps keep things dry, they work well and don't increase my "feedback" incidents. Even though I'm supposed to replace them weekly, they last longer than that. Soft, easy to use, good fit -- so comfy I can forget they're in when I'm using the right size. The price is my only down-vote, but the world is more expensive in all ways, I guess.

Good fit Value for the money

Happy with how these fit my ears. I just wish my $6000 hearing aids won't be broken every other month.

I had issues with my hearing aids slipping out with medium domes. The large closed domes worked to hold them in, but natural sound was very muted, especially my own voice, and sounded unnatural. These open domes did the trick. My aids are securely in place and the open design lets me hear more naturally as opposed to only through the hearing aid.