Exodus 27:4-6

Amplified Bible

⁴ Also make a grate for it, a network of bronze; and on the grid you are to make four bronze rings at its four corners. ⁵ And you shall put it under the ledge of the altar, so that the grid will extend halfway up the altar. ⁶ You shall make [carrying] poles for the altar, poles of acacia wood, overlaid with bronze.