Jeremiah 52:21 in the King James Version
And concerning the pillars, the height of one pillar was eighteen cubits; and a fillet of twelve cubits did compass it; and the thickness thereof was four fingers: it was hollow.
Context
20 They took the two pillars, the one sea, and the twelve bronze bulls that were under the bases, which King Solomon had made for the LORD’s house. The bronze of all these vessels was without weight.
21 As for the pillars, the height of the one pillar was eighteen cubits; and a line of twelve cubits encircled it; and its thickness was four fingers. It was hollow.
22 A capital of bronze was on it; and the height of the one capital was five cubits, with network and pomegranates on the capital all around, all of bronze. The second pillar also had the same, with pomegranates.