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by CppCoder
1557 days ago
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> They are permeated with little holes that allows light and sound in if they have not fully descended. If they have then the little holes are folded shut. This too is a bit generalised, as ours do fully close. In fact they actually snap into place to activate a break in barrier. This makes it harder to break in, as they can not be easily pushed up or removed. |
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