Exodus 37:27

37:27 He made two golden rings for it under its molding crown, on its two ribs, on its two sides, for places for poles with which to carry it.
-World English Bible

Other Translation

37:27 And he made two rings of gold for it under the crown thereof, by the two corners of it, upon the two sides thereof, to be places for the staves to bear it withal.
-King James Version