I was minding my own business when North Korea launched nukes on the office where I was working. I hastily built a shelter from these and I was the only survivor. Would highly recommend them for their sturdiness and radiation-deflecting capabilities.
I was in a hurry so I bought them eventhough they were not nearly up to the quailty I am used to the top did not fit well. Ofcourse they were inexpensive and I guess you get what you pay for. these ae more or less a single use box and are not strong enough to stack more than a couple higjh