If (as there seems to be no doubt) this ark was a type of the Lord Jesus, then those rings for the carrying of it from place to place, might be expressive of the presence of Jesus being always with his people. 1 Kings 8:22-30.
Related Commentaries of Exodus 25:11
Exodus 25:11-12
11 And thou shalt overlay it with pure gold, within and without shalt thou overlay it, and shalt make upon it a crown of gold round about.
12 And thou shalt cast four rings of gold for it, and put them in the four corners thereof; and two rings shall be in the one side of it, and two rings in the other side of it.