

Tubing Retention System (TRS) are a great option for soft ear mold pieces. The acrylic ring assists to hold the tubing in place and helps for easy replacement. You will receive one pack with 4 pieces of #13 HW TRS tubes ( .076 X .130 ) Invisiear tubing is a great choice to camouflage your tubes and reduce light reflection. Plastic tube with acrylic ring
N**S
This is the good stuff with the lock down on the tube
Some lock tubing have a lock at the top of the tube... that pulls out easily and doesn't seal as well as this stuff. This is the tubing with the lock that'll be embedded in your soft mold, seals better, and doesn't pull out. I'm adding it to my Subscription list.
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