Jer Jeremiah, chapter Book of Jeremiah, chapter 52
As for the pillars, the height of the one pillar was eighteen cubits;52:21 A cubit is the length from the tip of the middle finger to the elbow on a man’s arm, or about 18 inches or 46 centimeters. and a line of twelve cubits encircled it; and its thickness was four fingers. It was hollow. 1Ki 7:15; 2Ki 25:17