Instruct: Classify the given review as either positive or negative.
Query: NOT MACHINE WASHABLE!

I purchased this for my older dog who has "accidents". Anyway, the mat worked great the first time. However, as soon as I washed it the waterproofing material began to fall apart on the bottom side of the mat. I did not put in the dryer, only washed it. It is no longer usable as a waterproof cover. Do not buy this if you plan to wash it!!!