Exodus 37:1-3

Young's Literal Translation

37 And Bezaleel maketh the 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;

² and he overlayeth it with pure gold within and without, and maketh for it a wreath of gold round about;

³ and he casteth for it four rings of gold, on its four feet, even two rings on its one side, and two rings on its second side;