This double dome / eartip is available in three different variants 11mm, 9mm and 7mm It is and intended for those hearing aids that have a thin sound tube. Normally you replace your dome / eartip every 6-10 weeks depending on use. We recommend that you ask your audiologist to write down which dome/eartip fits your particular hearing aid to avoid misunderstandings when ordering. Fits Widex hearing aids Widex 9 BTE élan hose Packaging contains: 10 pcs
