Set Includes: -3 Size #13 Acoustic Tubes: Straight, Bent and S Bent Tubes.. -3 Dome Eartips in Small, Medium and Large Size :Size and Dimensions:.. Small..Outer Diameter (8mm)..Height (12mm).. Medium....Outer Diameter (11mm)...Height (13mm).. Large..Outer Diameter (13mm)..Height (14mm) -Elbow Right Angle Connector.. -Multi Purpose Cleaning Brush with Wax Remover and Battery Magnet.. -Battery Safe 2 Pack Holder with Key Chain Attachment.. -Acoustic Tube and Mold Blower Cleaner.... Compatible Hearing Aids:... Beltone- Bold, Origin, Boost, Force, Access, Identity, and Turn... Product Description:.. -Acoustic Tubes in Various forms let you customize and change old acoustic tubes. They can be cut and customized for your personal length and comfort. It is beneficial or necessary to change them frequently because BTE hearing aids become uncomfortable and more difficult to wear as the older tubes become progressively stiffer. -Dome Eartips allow you to personalize the comfort of your hearing aid to provide maximum noise isolation and comfortable wearing. -Elbow Right Angle Connector connects the acoustic tubes to the Dome Eartips. -Multi Purpose Cleaning 3-in-1 Brush with Wax Remover and Battery Magnet helps you maintain your Hearing aids, acoustic tubes, Eartip Domes and install batteries much easier. -Battery Safe 2 Pack Holder with Key Chain Attachment has space for 2 Batteries to keep them safe, away from moisture and on hand when you have to change used batteries. -Acoustic Tube Blower Cleaner lets you reach and blow out Ear wax or debris that may be stuck and impossible to reach within your acoustic tubes of the Hearing Aid. Also removes moisture and foreign matter from tubing after cleaning to provide a clear opening from hearing aid to eardrum. With this set you will extend the life and comfort of your Hearing Aids.