Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cheap materials, total waste of money!

I followed the instructions for packing the bags and still could not use them. When I went to lift one up, my finger went right through the bag. I am a small woman in my mid-50's and have very weak hands and wrists. On two of the bags, when I tried to zip them closed; the zipper broke through the plastic. I have never been so disappointed with a product that brags to be so great and the price for them is outrageous. My advice is DO NOT BUY!!!! If I could, I would give them a minus rating!