Exodus 37:1-5

Bezalel made the Chest using acacia wood: He made it three and three-quarters feet long and two and a quarter feet wide and deep. He covered it inside and out with a veneer of pure gold and made a molding of gold all around it. He cast four gold rings and attached them to its four feet, two rings on one side and two rings on the other. He made poles from acacia wood, covered them with a veneer of gold, and inserted the poles for carrying the Chest into the rings on the sides.