Most custom-made hearing aids have a vent hole which runs through the hearing aid, from canal tip to faceplate. This tool should not be used inside your receiver hole (which is located on the canal tip) nor should it be used in the microphone hole (which is located on your faceplate).
SUPPORT AND STRENGTH – Treat injured and fractured limbs with this lightweight and flexible splint. SUPERIOR ALUMINUM INTERIOR – The aluminum core housed between the outer foam shell is substantially lighter and more flexible than other plaster or fiberglass splints.