Exodus 27:4-6

New King James Version

⁴ You shall make a grate for it, a network of bronze; and on the network you shall make four bronze rings at its four corners. ⁵ You shall put it under the rim of the altar beneath, that the network may be midway up the altar. ⁶ And you shall make poles for the altar, poles of acacia wood, and overlay them with bronze.