GITD O-rings

[holygeez03]

Can someone point me to a source for good glow-in-the-dark o-rings and also the proper size to go on the exterior of a Zebralight H51?

 

[brandocommando]

I got mine from Lighthound. They have a bunch of different sizes.

 

[holygeez03]

Ok thanks... Can someone recommend a size for the outside of a H51?