The plastic in this cover is so thin that it tears with little or no resistance when you place the cover on a mattress. The zipper is on the short end of the mattress and only on one side, unlike other mattresses that have a zipper on 3 sides. This means that you have to lay the body on one side and "stretch" it along the entire length of the mattress. The plastic is very thin, if you do this it breaks very easily. I think that's what you get for something under $10. Avoid this and opt for a slightly more expensive case that won't tear.
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