Exodus 37:1-4

Now Bezalel made the ark of acacia wood; its length was two and a half cubits, its width one and a half cubits, and its height one and a half cubits;

and he overlaid it with pure gold inside and out, and made a gold molding for it all around.

He cast four rings of gold for it on its four feet; two rings on one side of it, and two rings on the other side of it.

And he made poles of acacia wood and overlaid them with gold.