Exodus 27:3-7

3And you shall make its pails for removing its ashes, and its shovels, its basins, its forks, and its firepans; you shall make all its utensils of bronze.

4You shall also make for it a grating, a netting of bronze, and on the netting you shall make four bronze rings 1at its four corners.

5And you shall put it under the ledge of the altar, so that the netting will reach halfway up the altar.

6You shall also make carrying poles for the altar, poles of acacia wood and overlay them with bronze.

7Its poles shall be inserted into the rings, so that the poles will be on the two sides of the altar 2when it is carried.