Using a mask to cover duplicate mc's

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… okay, now I’ll explain. :c)

I have a swf that currently duplicates itself (a little square) to be many twirling outwards squares, the problem is I need it to contain itself in a container 695 wide by 58 high. I’ve tried multiple masking such as masking the actual clip to loading the swf into level 0 of another clip with a mask but nothing is keeping it inside the desired boundaries.

Any assistance with this one?