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when I said it 'wasn't very heavy"
I meant it only weighed ten or twenty tons..
packing peanut?

Well, I suppose that's why they didn't supply you with cardboard boxes full of small styrofoam nuggets, known to me as packing peanuts, because they are shaped, and sized, about like a peanut.

The straps don't need to support the whole mass, just keep a bit of pressure on to keep it stable. Fact: you didn't need the extra hassle, you just got it done.