The poles of the ark extended far enough that their ends were visible from in front of the inner sanctuary, but not from outside the Holy Place; and they are there to this day.
KJV
And they drew out the staves [of the ark], that the ends of the staves were seen from the ark before the oracle; but they were not seen without. And there it is unto this day.
ASV
And the staves were so long that the ends of the staves were seen from the ark before the oracle; but they were not seen without: and there it is unto this day.