1 Kings 7:30-34

And every base had four brasen wheels, and plates of brass: and the four corners thereof had undersetters: under the laver were undersetters molten, at the side of every addition.

And the mouth of it within the chapiter and above was a cubit: but the mouth thereof was round after the work of the base, a cubit and an half: and also upon the mouth of it were gravings with their borders, foursquare, not round.

And under the borders were four wheels; and the axletrees of the wheels were joined to the base: and the height of a wheel was a cubit and half a cubit.

And the work of the wheels was like the work of a chariot wheel: their axletrees, and their naves, and their felloes, and their spokes, were all molten.

And there were four undersetters to the four corners of one base: and the undersetters were of the very base itself.