EXO 28:26

26 And thou shalt make two golden rings, which thou shalt set in the highness of the rational, and in the hems of the cloak on the shoulder(s), that be even against, and behold the latter things thereof. (And thou shalt make two gold rings, which thou shalt fasten to the lower corners of the breastpiece, by the hem of the ephod, so that they be opposite each other.)