O Rings on Track Clip Pro

[Kamron]

So it appears as if both of the O-Rings on the arm of my track clip pro will need to be replaced. One is Broken and the other is pretty dry rotted. Has anyone done this before and know the size of the rings? I could always run to a store and match them up but in today's environment if I can order it online I would prefer to.

Do be clear these are the 2 rings, the one between the arm and the led holder and the other is where the arm connects to the clip

Thanks!