Tubing and tube lock-assembled. The Tube Lock coupling system utilizes a gold metal coupler with a ridge to hold tubing in place without cement, yet allowing tubing replacement as needed.

You should use the tube-lock inserter (HH2957)  tool with these metal locks.

• Tube Lock is made of metal which locks into any type flexible earmold. 
• Convenient to use and eliminates need for cement, or any binding material
• When using a horn with Tube Lock Plus, the high frequency boost between 3000 and 5000 Hz remains.
• Tubing cannot be accidentally pulled out--the seal is secure
• Can be used with any style flexible earmold including canal type.
• Tube-lock has a minimal effect on the hearing aids M.P.O.

Includes:

• 4 tubes with Tube Lock--assembled. Size #13 Standard Size Tubing (0.076 X 0.116.)