Exodus 28:27

And make two more gold rings and put them on the front of the ephod at the top of the arms, at the join, over the worked band:

Treasury of Scripture Knowledge

Summary

And two other rings of gold thou shalt make, and shalt put them on the two sides of the ephod underneath, toward the forepart thereof, over against the other coupling thereof, above the curious girdle of the ephod.

The curious girdle

Bible References

The curious girdle

Exodus 28:8
And the beautifully worked band, which goes on it, is to be of the same work and the same material, of gold and blue and purple and red and twisted linen-work.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain