Ahhhhhhhh, "glow rings".........
Differnt bird altogether. Its alright Dweste, everybody makes a muddled post from time to time thinking it makes perfect sense, because to you it does.
Having said that as far as I know they are still not leagal to sell here in the US as they have to pass the federal nuclear regulatory commission....as do all things made with tritium as a component. Personally I'd love to get 2 or 3 myself just to play with them. I'm still hoping T.A.D. Gear offers their h3 tritium thumbstuds again soon as I'd love to throw one on my knife in case of dropping it in the dark.
So worth it, I'd think so. At least to me. Lemme know if ya find a way, like I said 2 or 3 of 'em have been callin my name.....

-Bill Liptak