Doggo outgrew lite up collar but it's just led attached to this clear nylon or pvc piping. Feel like if I knew what the tubing material was I could probably find some. This is 8mm OD.
That looks spot on but it's way more expensive than a new collar😅. Figured it would be really cheap by the foot but maybe I just need to get the new collar!
As someone else in this thread said, that is PMMA, basically acrylic. I work a ton with the stuff to distribute light to displays and indicators when designing hardware prototypes. I also had dogs once, same stuff really.
FYI there's another style of LED collar which is not a full collar but rather a rectangular strip of LEDs that you can attach to any collar. That way it can't be outgrown.