Jeremiah 52:21

21 The two columns were identical: each one was 27 feet high and 18 feet around. They were hollow, and the metal was 3 inches thick. On top of each column was a bronze capital 7 1/2 feet high, and all around it was a grillwork decorated with pomegranates, all of which was also made of bronze.

Jeremiah 52:21 Meaning and Commentary

Jeremiah 52:21

And [concerning] the pillars, the height of one pillar [was]
eighteen cubits
As in ( 1 Kings 7:15 ) ; said to be thirty five, ( 2 Chronicles 3:15 ) ; of the reconciliation of which, (See Gill on 2 Chronicles 3:15): and a fillet of twelve cubits did compass it;
a thread or line of that measure encompassed each of the pillars, ( 1 Kings 7:15 ) ; and the thickness thereof [was] four fingers;
either of the pillar, or the fillet about it; that is, the brass of it was four fingers thick: [it was] hollow;
that is, the pillar was hollow.

Jeremiah 52:21 In-Context

19 They took away everything that was made of gold or silver: the small bowls, the pans used for carrying live coals, the bowls for holding the blood from the sacrifices, the ash containers, the lampstands, the bowls used for incense, and the bowls used for pouring out wine offerings.
20 The bronze objects that King Solomon had made for the Temple - the two columns, the carts, the large tank, and the twelve bulls that supported it - were too heavy to weigh.
21 The two columns were identical: each one was 27 feet high and 18 feet around. They were hollow, and the metal was 3 inches thick. On top of each column was a bronze capital 7 1/2 feet high, and all around it was a grillwork decorated with pomegranates, all of which was also made of bronze.
23 On the grillwork of each column there were a hundred pomegranates in all, and ninety-six of these were visible from the ground.
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.