Note that the door of the internal account and the external account must be in one Direction ah, Four Corners hang in the four corners of the internal account (near the position of the stick, you can find the hang of the place), there are some of the four corners of the external account nails also used in the vicinity of the four corners, to see if there is a hanging ring can be nailed to the external account, to let the bulging, And the internal ledger is not posted on the place.