1 Kings 7:30
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 every base had four brasen wheels, and plates of brass,.... Flat pieces or planks of brass, on which the wheels stood, and not on the bare floor; so that these wheels seem only to serve as supporters, not to carry the laver from place to place, as is usually said; for they were not like chariot wheels, on two sides of the carriage, but set one at each square; and besides, when the lavers were placed upon them, they were fixed in a certain place, 1 Kings 7:39
and the four corners thereof had undersetters; or "shoulders {a}", or pillars, which were placed on the plates of brass the wheels were; and served with them to support the lavers when laid upon the bases, and so were of the same use as men's shoulders, to bear burdens on them:
under the layer were undersetters molten; cast as, and when and where, the bases were, and the plates on which they stood; this explains the use they were of, being under the laver; these pillars stood at the four corners of the base:
at the side of every addition; made of thin work, 1 Kings 7:29 they stood by the side of, or within side, the sloping shelves.
{a} tptk "humeri", Pagninus, Montanus, &c.