Couldn't get the center box to slide out of the outer shell. The number one key would slam the lid shut but not release the box from the holder. After close inspection, the locking tab on the back of the outer shell was welded on upside down so that it could not be released with a turn of the key. I just broke the tab off and guess I will use it as is. The box is heavy construction, but evidently poor quality control.
We bought 5 or 6 of these. Several of them came with keys that were smashed or with keys that didn't fit the box that was shipped. Keys from some of the other ones we bought fit other boxes so it worked out. Each comes with an outside box that gets mounted under a desk and then the lockbox that inserts into that. Several of them would not lock into place properly. Finally about a week into using one of them, the lock assembly on the side door pushed into the box and got stuck so we had to drill it out rendering the box useless. I would not buy this product again.