They are to be paired at the bottom, and joined together at the top in a single ring. So it should be for both of them; they will serve as the two corners.
and make forty silver bases under the twenty supports, two bases under the first support for its two tenons, and two bases under the next support for its two tenons;
There were 3,400 kilograms of silver used to cast the bases of the sanctuary and the bases of the curtain #– #one hundred bases from 3,400 kilograms, 34 kilograms for each base.