1 Kings 7:31-34

31Its opening inside the crown at the top was a cubit high, and its opening was round like the design of a pedestal, a cubit and a half, and also on its opening were engravings, and their borders were square, not round.

32The four wheels were underneath the borders, and the axles of the wheels were in the base. The height of a wheel was a cubit and half.

33And the structure of the wheels was like the structure of a chariot wheel; their axletrees, their rims, their spokes, and their hubs were all cast metal.

34There were four brackets at the four corners of each base; each bracket was of one piece with the base itself.