Exodus 25:10-12

Young's Literal Translation

¹⁰ `And they have made an ark of shittim wood; two cubits and a half its length, and a cubit and a half its breadth, and a cubit and a half its height;

¹¹ and thou hast overlaid it [with] pure gold, within and without thou dost overlay it, and thou hast made on it a ring of gold round about.

¹² `And thou hast cast for it four rings of gold, and hast put [them] on its four feet, even two rings on its one side, and two rings on its second side;