SmartR Hearing Aids Ear Piece D Shape Domes 10-Pack Comfortable PSAP Kit Ear Tips

SmartR Hearing Aid Ear Piece D Shape Domes 10-Pack Comfortable PSAP (Personal Sound Amplifiers Product) Kit Ear Tips Invisible, Perfect for SmartR CIC hearing aids

This is a hearing aid D Shape Domes set of chosgo SmarR CIC Hearing Aids models with 10pcs of 6mm or 9mm or 12mm units.

These domes could be used with Chosgo SmartR CIC hearing aids.

If the ear dome is too big, your ear canal will feel pressure and will not be comfortable.
If the ear dome is too small, the sound will be leaked and you will hear a terrible squealing.
So it's important to choose your suitable size carefully in advance.
If you already know this size will be suitable for you, then please go on. 

They are

6mm D Shape Domes
9mm D Shape Domes
12mm D Shape Domes