Hiibaby&reg; 18 pcs Ear Plug with 6 tubes Siemens Resound BTE Hearing Aid Aids Eartips Domes (size S M L) 1. This Universal Quick-Fit BTE (Behind-the-Ear) Hearing Aid Aids Domes and Tube Kit comes with on 2. After connecting the preferred dome size to the tube, you can then match up the proper length of 3. Due to the low-profile design, this kit provides one of the most discreet, but well-sealed fittin 4. Plus, there is no comparison in cost. At 10% or less the cost of tradtional BTE earmolds, this wi 5. Buy with confidence, and enjoy!Thank you and we look forward to doing business with you!