Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Forget it!

My orthopedist suggested I buy these following knee surgery for when I take a plane trip. I bought them and what a waste of money! I cannot remark on how well they do or don't work because I could not get the damned things on! I think it would take at least two people to help get these things on. I bought them just before a flight from San Francisco to London and had no problem. Just got up and walked around every once in a while. This was money wasted and they were not cheap!