Exodus 25:10-16

“They shall make an ark of acacia wood two and a half cubits long, one and a half cubits wide, and one and a half cubits high. You shall overlay the ark with pure gold, overlay it inside and out, and you shall make a gold border (frame) around its top. You shall cast four gold rings for it and attach them to the four feet, two rings on either side. You shall make [carrying] poles of acacia wood and overlay them with gold, and put the poles through the rings on the sides of the ark, by which to carry it. The poles shall remain in the rings of the ark; they shall not be removed from it [so that the ark itself need not be touched]. You shall put into the ark the Testimony (Ten Commandments) which I will give you.