Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worthless product

I paid an outrageous price ($1.49) for this product at a pet store. It is made far too rigidly to work on the smallest size cans. Once it is on the can, it is impossible for me to remove. I enlisted my husband's help and even he has trouble getting it off. I was given a FREE can cover at another pet store. It is a softer plastic and works much better. If you use the smallest size cans, forget about this one!