So the other day, I was letting my horse graze when someone began walking towards the arena. I immediately noticed their bit because it had two O-rings. Both were the same size. There appeared to only be one bit, but I didn't get a good look. One was attached to the bridle and one was attached to the reins. It was not a Boucher/B-ring bit. Hmm...What do you think?
I cannot find any bit like it online.