Instruct: Classify Amazon reviews into positive or negative sentiment
Query: cheap and flimsy

These are terrible. I normally use Medela or Lansinoh, but these were all that I could find in a pinch, and I had a coupon. They are definately not worth the money, even with the coupon. They are so thin I have ripped two just trying to open them, and I am afraid I am going to put a hole in them when I write on the bag. They are not less expensive when you factor in the ones you have to discard and the fear of contaminated or leaked milk.