וְאַרְבָּעָה֩ אוֹפַנֵּ֨י נְחֹ֜שֶׁת לַמְּכוֹנָ֤ה הָֽאַחַת֙ וְסַרְנֵ֣י נְחֹ֔שֶׁת וְאַרְבָּעָ֥ה פַעֲמֹתָ֖יו כְּתֵפֹ֣ת לָהֶ֑ם מִתַּ֤חַת לַכִּיֹּר֙ הַכְּתֵפֹ֣ת יְצֻק֔וֹת מֵעֵ֥בֶר אִ֖ישׁ לֹיֽוֹת׃
And every base had four brazen wheels, and axles of brass; and the four feet thereof had undersetters; beneath the laver were the undersetters molten, with wreaths at the side of each.
Read midrashic interpretation of I Kings 7:30: and classical rabbinic exegesis.