✅ SOLVED What is this? Part of a horse harness or something like that?

[Kapidr]

I found this on the beach with my Excal after Hurricane Matthew. Anyone know what it is? Maybe horse related?

 

[Tony in SC]

Looks like a reins guide.

 

[vhs07]

Gag loop.

 

[Kapidr]

Gag loop.

Thanks!